Category: 29106-49-8

Evolution of main polyphenolics during cidermaking was written by Zuriarrain-Ocio, Andoni;Zuriarrain, Juan;Etxebeste, Oier;Duenas, Maria Teresa;Berregi, Inaki. And the article was included in LWT–Food Science and Technology in 2022.Formula: C30H26O12 The following contents are mentioned in the article:

This work reports the evolution of polyphenolic compounds content during the cidermaking process in the Basque Country (Northern Spain). Fourteen monovarietal musts were obtained throughout three seasons (13 different, one repeated) using different apple cultivars from the Basque Country. Monovarietal musts were used to cover a wide range of polyphenolic content and to introduce variability. These musts were fermented and matured to obtain 14 monovarietal ciders. The evolution of the musts was monitored during 6-8 mo by measuring the polyphenolic profile with an HPLC method throughout 4 or 5 samplings. Chlorogenic acid, 4-p-coumaroylquinic acid and (-)-epicatechin showed fluctuations during the alc. fermentation (10-40 days), followed by stabilization. With phloretin 2-O-xyloglucoside, an increase or a stable concentration was observed during the alc. fermentation followed by stabilization. Tyrosol, absent in the initial musts, showed an increase during the alc. fermentation and became stable afterwards. These were the only general patterns observed The rest of the phenolic compounds studied, such as procyanidin B1, procyanidin B2 and phloridzin, did not show any general evolution rule. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Formula: C30H26O12).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Formula: C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Phytochemicals and anti-tyrosinase activities of Paeonia ostii leaves and roots was written by Yang, Jing;Wang, Chunyu;Li, Nana;Wu, Liyang;Huang, Ziang;Hu, Zhiyong;Li, Xiaojun;Qu, Zhican. And the article was included in Plant Physiology and Biochemistry in 2022.Quality Control of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol The following contents are mentioned in the article:

Tree peony (sect. Moutan) is a kind of Traditional Chinese Medicine and ornamental plant, which has been widely cultivated and utilized for thousands of years. To further study the active components of Paeonia ostii (Moutan, Fengdan), six fractions (soluble free (F), soluble esterification, soluble glycosylation, insoluble bound, insoluble esterification and insoluble glycosylation) were extracted from the leaves and roots by alk. and acid treatment for the first time. Twenty-one typical compounds were identified and quantified by HPLC-MS. The results showed that total phenolic content (TPC) in peony roots (PR) and peony leaves (PL) were as high as 125.48 and 280.38 mg GAE·g^-1 dw, which maximizes the extraction efficiency of phenolic compounds, especially leaves, compared with the conventional method. PR-F and PL-F had the highest TPC, antioxidant and antityrosinase activities. Paeoniflorin was the main compounds in PL and PR. It and pentagalloylglucose (PGG) almost reached the anti-tyrosinase level of kojic acid, but they showed different inhibitory mechanisms by mol. docking. On the whole, PR-F, PL-F, PGG and paeoniflorin might be potential for skin whitening products. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Quality Control of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Quality Control of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Why Catechin and Epicatechin from Early Hopping Impact the Color of Aged Dry-Hopped Beers while Flavan-3-ol Oligomers from Late and Dry Hopping Increase Colloidal Instability was written by Silva Ferreira, Carlos;Simon, Margaux;Collin, Sonia. And the article was included in Journal of the American Society of Brewing Chemists.SDS of cas: 29106-49-8 The following contents are mentioned in the article:

Dry hopping imparts distinct aromas but also a series of non-volatile compounds suspected of causing flavor and phys. instability during beer storage. In this work, color, chill haze, total polyphenols, total flavanoids, and flavan-3-ol monomers (catechin and epicatechin) and oligomers (procyanidin dimers and trimers) were monitored in five com. pale-colored Belgian dry-hopped beers over 24 mo of storage at 20 °C in the dark. Fresh dry-hopped beers contained unusually high levels of flavan-3-ol monomers (up to 6.6 mg/L) and oligomers (up to 14.1 and 10.2 mg/L dimers and trimers, resp.). The increase in color intensity during storage (up to 6.4°EBC) correlated with fresh beer monomer levels, while the oligomer content correlated with chill haze formation (up to 25.7°EBC). The evolution of these two phys. attributes also correlated with the level of total polyphenols in the fresh beers. In a pilot-scale production, kettle hopping was shown to impart either monomers (early) or oligomers (late), while dry hopping promoted efficient extraction of both monomers and dimers (extraction yields of 62 and 74%, resp.). Dry hopping thus plays an important role in color and chill haze increase. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8SDS of cas: 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.SDS of cas: 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Spatholobus suberectus Dunn water extract ameliorates atopic dermatitis-like symptoms by suppressing proinflammatory chemokine production in vivo and in vitro was written by Song, Hyun-Kyung;Park, Sun Haeng;Kim, Hye Jin;Jang, Seol;Kim, Taesoo. And the article was included in Frontiers in Pharmacology in 2022.COA of Formula: C30H26O12 The following contents are mentioned in the article:

S. patholobus suberectus Dunn, a traditional Chinese herbal medicine, has various pharmacol. activities, such as anti-inflammatory properties. However, to the best of our knowledge, its therapeutic effect on atopic dermatitis (AD) has not been investigated. In this study, we explored the effect of S. suberectus Dunn water extract (SSWex) on AD in vivo and in vitro. In Dermatophagoides farina extract (DfE)-treated NC/Nga mice, the oral administration of SSWex alleviated AD-like symptoms, such as ear thickness, dermatitis score, epidermal thickness, immune cell infiltration, and levels of ADrelated serum parameters (IgE, histamine, and proinflammatory chemokines). In HaCaT cells, the production of proinflammatory chemokines induced by interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) was inhibited by SSWex pretreatment. SSWex treatment inhibited the phosphorylation of mitogen-activated protein kinase and activation and translocation of transcriptional factors, such as signal transducer and activator of transcription 1 and nuclear factor kappa B in IFN-γ/TNF-α-stimulated HaCaT cells. These results indicate that SSWex may be developed as an efficient therapeutic agent for AD. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8COA of Formula: C30H26O12).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.COA of Formula: C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Combined effects of sunlight and tempering treatment on the oligomeric procyanidin formation in dried ume (Prunus mume Sieb. et Zucc.) was written by Ma, Fu-Yuan;Huang, Tzou-Chi;Nayi, Pratik;Chen, Ho-Hsien. And the article was included in Drying Technology.Recommanded Product: (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol The following contents are mentioned in the article:

In this study, the combined effect of sunlight irradiation and tempering treatment on the promotion of oligomeric procyanidins (OPCs) formation in the dried ume (Prunus mume Sieb. et Zucc.) was investigated and firstly reported. Water content, water activity, and chem. structure of the OPCs were analyzed during the drying process. Two nights of tempering treatment reduced the water content and water activity significantly. Two major OPCs, procyanidin B2 and procyanidin C1 were characterized in sun-dried ume and the (-)-epicatechin model by both the pos. and neg. ionization modes using an electrospray ionization source (ESI). The concentration of procyanidin B2 and procyanidin C1 increased by 1.76 and 1.24 folds, resp. in the intermittently sun-dried ume. The developed photocatalytic closed-type dryer was used in this experiment confirmed successfully that tempering treatment enhanced the moisture redistribution and precursor accumulation leading to the subsequent photooxidation of (-)-epicatechin for OPCs. To minimize the drawback of outer drying under climatic change this is a possible protocol design with effective drying technol. to improve the quality and mass production of the functional umes. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Recommanded Product: (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Recommanded Product: (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Enhanced bioavailability and anti-hyperglycemic activity of young apple polyphenols by complexation with whey protein isolates was written by Li, Dan;Yang, Yongli;Yang, Xi;Wang, Zichao;Yao, Xiaolin;Guo, Yurong. And the article was included in Journal of Food Science in 2022.Quality Control of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol The following contents are mentioned in the article:

This study aims to evaluate the effects of complexation of whey protein isolate (WPI) and young apple polyphenols (YAP) on the bioavailability and anti-hyperglycemic activity of YAP. Two types of WPI-YAP complexes were fabricated by mixing WPI with YAP at 25°C (WPI-YAP) and 90°C (WPI-YAP-H), resp. The intermol. interactions between WPI and YAP were investigated by fluorescence spectroscopy and CD analyses. The in vitro bioaccessibility and bioavailability of YAP were determined using a simulated gastrointestinal digestion and human Caco-2 cells model. It was found that the total polyphenols transport efficiency was improved from 39.8% (YAP) to 48.2% (WPI-YAP) and 56.1% (WPI-YAP-H), indicating that the bioavailability of YAP was improved by complexation with WPI. Besides, after complexation with WPI, YAP displayed an improved in vivo effect on alleviating the increase in postprandial blood glucose level than the pure YAP, with WPI-YAP-H showing a better effect. This finding indicates that co-complexation of YAP with WPI is an effective way to improve the functionality of YAP, and the WPI-YAP complexes are also expected to have potential application in designing YAP-containing functional foods. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Quality Control of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Quality Control of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Procyanidin B2 inhibits angiogenesis and cell growth in oral squamous cell carcinoma cells through the vascular endothelial growth factor (VEGF)/VEGF receptor 2 (VEGFR2) pathway was written by Sun, Qiurong;Zhang, Taiyang;Xiao, Qingchun;Mei, Bingxin;Zhang, Xingwang. And the article was included in Bioengineered in 2022.HPLC of Formula: 29106-49-8 The following contents are mentioned in the article:

This study aimed to explore the therapy role of procyanidin B2 (PB2) in inhibiting angiogenesis and cell growth in oral squamous cell carcinoma. After oral mucosa epithelial cell (OMEC) and human oral squamous cell carcinoma (OSCC) cell line (SCC-25) were treated with PB2 or SCC-25 were treated with PB2 and rhVEGF, cell counting kit-8 (CCK-8) assay was used to determine the cell viability. The apoptosis, migration, invasion and angiogenesis of SCC-25 after indicated treatment were detected by Tunel, wound healing, transwell and tube formation assays. The protein expression related to apoptosis, metastasis and epithelial-mesenchymal transition (EMT) and changed expression of vascular endothelial growth factor (VEGF)/VEGF receptor 2 (VEGFR2) signaling was analyzed by Western blot. As a result, PB2 inhibited viability, invasion, migration and EMT and promoted apoptosis of SCC-25 cells. In addition, PB2 inhibited VEGF/VEGFR2 signaling and tumor itangiogenesis in OSCC. As expected, activation of VEGF/VEGFR2 signaling suppressed the effect of PB2 on growth and metastasis of OSCC cells. In conclusion, PB2 inhibited the VEGF/VEGFR2 pathway to suppress the angiogenesis and cell growth of SCC-25 cells. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8HPLC of Formula: 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.HPLC of Formula: 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

High production of secondary metabolites and biological activities of Cydonia oblonga Mill. pulp fruit callus was written by De Bellis, Roberta;Chiarantini, Laura;Potenza, Lucia;Gorassini, Andrea;Verardo, Giancarlo;De Marco, Rossella;Benayada, Leila;Stocchi, Vilberto;Cristina Albertini, Maria;Fraternale, Daniele. And the article was included in Journal of Functional Foods in 2022.Recommanded Product: 29106-49-8 The following contents are mentioned in the article:

This study has developed an innovative method for the production of secondary metabolites starting from Cydonia oblonga Mill (quince) pulp callus culture. The qual. and quant. content of phenolic and triterpenic acids of quince callus extract were elucidated by GC-MS, GC, and HPLC-DAD-ESI-MSn. The callus extract was rich of 5-O-caffeoylquinic acid (5-CQA), 5-p-coumaroylquinic acid (5-p-CoQA) and maslinic and corosolic acid. Quince callus extract’s radical scavenging and antioxidant activity were evaluated by 2,2-diphenyl-1-picrylhydrazyl, 2,2,-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid), and Oxygen Radical Absorbance Capacity methods. The genoprotection was evaluated by gel electrophoresis anal. and quant. Real-Time PCR. In addition to the good antioxidant activity the quince callus extract is a strong inhibitor of α-glucosidase (IC50 of 0.25 ± 0.02 mg dw/mL) and lipase (IC50 of 1.99 ± 0.005 mg dw/mL), but mild inhibitor of α-amylase. Therefore, this work would be significant for the future development of a nutraceutical approach to the management of hyperglycemia and dyslipidemia. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Recommanded Product: 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Recommanded Product: 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Impact of chitosan embedded with postbiotics from Pediococcus acidilactici against emerging foodborne pathogens in vacuum-packaged frankfurters during refrigerated storage was written by Incili, Gokhan Kursad;Karatepe, Pinar;Akgol, Muzeyyen;Tekin, Ali;Kanmaz, Hilal;Kaya, Busra;Calicioglu, Mehmet;Hayaloglu, Ali Adnan. And the article was included in Meat Science in 2022.Synthetic Route of C30H26O12 The following contents are mentioned in the article:

The objective of the study was to carry out characterization of postbiotics from Pediococcus acidilactici and to assess their efficacy (50% and 100%) in combination with chitosan (0.5 and 1%) against Escherichia coli O157:H7, Salmonella Typhimurium, Listeria monocytogenes on frankfurters during refrigerated storage for 35 days. High amounts of total phenolic content (1708.15 ± 93.28 mg GAE/L) and carboxylic acids, which comprised 74.89% of the total volatiles, were found in the postbiotics. On day 0, the postbiotic-chitosan combinations decreased the E. coli O157:H7, L. monocytogenes and S. Typhimurium counts ranging from 1.58 to 3.21 log10 compared to the control in frankfurters (P < 0.05). Total viable count and number of lactic acid bacteria were effectively reduced in all treatment groups (P < 0.05), and postbiotic and chitosan treatments did not cause any changes in pH and color of the frankfurters. In conclusion, postbiotic-chitosan combinations can be used to reduce the risks that might be associated with E. coli O157:H7, L. monocytogenes, and S. Typhimurium in frankfurters. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Synthetic Route of C30H26O12).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Synthetic Route of C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Impact of prolonged withering on phenolic compounds and antioxidant capability in white tea using LC-MS-based metabolomics and HPLC analysis: Comparison with green tea was written by Zhou, Binxing;Wang, Zihao;Yin, Peng;Ma, Bingsong;Ma, Cunqiang;Xu, Chengcheng;Wang, Jiacai;Wang, Ziyu;Yin, Dingfang;Xia, Tao. And the article was included in Food Chemistry in 2022.Formula: C30H26O12 The following contents are mentioned in the article:

Contents of 20 bioactive compounds in 12 teas produced in Xinyang Region were determined by high performance liquid chromatog. Ultra-high performance liquid chromatog.-quadrupole time of flight-mass spectrometry was developed for untargeted metabolomics anal. Antioxidant activities were measured by 4 various assays. Those teas could be completely divided into green and white tea through principal component anal., hierarchical cluster anal. and orthonormal partial least squares-discriminant anal. (R2Y = 0.996 and Q2 = 0.982, resp.). The prolonged withering generated 472 differentiated metabolites between white and green tea, prompted significant decreases (variable importance in the projection > 1.0, p-value < 0.05 and fold change > 1.50) of most catechins and 8 phenolic acids to form 4 theaflavins, and benefited for the accumulation of 17 flavonoids and flavonoid glycosides, 8 flavanone and their derivatives, 20 free amino acids, 12 sugars and 1 purine alkaloid. Addnl., kaempferol and taxifolin contributed to 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging ability of white tea. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Formula: C30H26O12).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Formula: C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts