Photocolorimetric determination of cocaine was written by Karpova, L. K.. And the article was included in Aptechnoe Delo in 1965.Electric Literature of C10H22O3 This article mentions the following:
A photocolorimetric method for the determination of cocaine-HCl (I) based on its reaction with alk. NH2OH then with FeCl3 in acid medium is described. The procedure is suitable for the determination of 0.2-1.0 mg. I with a precision of ± 1.5%. The method is based on the formation of a colored Fe-hydroxamic acid complex, the absorbance of which is read in a spectrophotometer equipped with a green filter. In the experiment, the researchers used many compounds, for example, rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6Electric Literature of C10H22O3).
rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. 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.Electric Literature of C10H22O3
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts