Assay of terpin hydrate and codeine elixir by gas chromatography was written by Wasselman, Harold J.. And the article was included in Journal of Pharmaceutical Sciences in 1968.Reference of 2451-01-6 This article mentions the following:
Terpin hydrate and codeine after extraction from the elixir are separated and determined with the aid of two internal standards and the use of temperature-programmed gas chromatog. Using the same method, elixir of terpin hydrate can also be determined A precision and accuracy study for both elixirs is included. 25 references. In the experiment, the researchers used many compounds, for example, rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6Reference of 2451-01-6).
rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6) 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. 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.Reference of 2451-01-6
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts