[Products Name]               Stigmasterol

[Molecular Formula]          C29H48O

[CAS No.]                            83-48-7
Stigmasterol is a phytosterol with a molecular weight of 412.691.
It is also known as Wulzen anti-stiffness factor.

Stigmasterol is one of a group of plant sterols, or phytosterols, that includes beta-sitosterol, campesterol, ergosterol （provitamin D2）, brassicasterol, delta-7-stigmasterol and delta-7-avenasterol, that are chemically similar to animal cholesterol.

Phytosterols are insoluble in water but soluble in most organic solvents
and contain one alcohol functional group.

Stigmasterol is an unsaturated plant sterol occurring in the plant fats or oils of soybean, calabar bean, and rape seed, and in a number of medicinal herbs,                 including the Chinese herbs Ophiopogon japonicus, or Mai men dong, and American Ginseng.

Stigmasterol is also found in various vegetables, legumes, nuts, seeds and unpasteurized milk. Pasteurization will inactivate stigmasterol.

It is used as a precursor in the manufacture of synthetic progesterone, a valuable human hormone that plays an important physiological role in the regulatory and  tissue rebuilding mechanisms related to estrogen effects, as well as acting as an intermediate in the biosynthesis of androgens, estrogens, and corticoids.