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17 alpha-Estradiol; Alpha-estradiol; 17A-estradiol; CAS 57-91-0; EINECS 200-354-8
17 alpha-Estradiol; Alpha-estradiol; 17A-estradiol; CAS 57-91-0; EINECS 200-354-8

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17 alpha-Estradiol
Hormones
For anti-aging face cream

17 alpha-Estradiol


Synonyms:      Alpha-estradiol; 17A-estradiol

CAS:         57-91-0

EINECS:  200-354-8

Molecular Formula:        C18H24O2

Molecular Weight: 272.39

Molecular Structurer:     

 

 

Items

Requirement

Appearance

White or off-white crystalline powder

Identification

IR

Assay

99% min

Melting range

216-224 oC

Specific rotation

+52o to +60o

Loss on drying

3.5% max

Monor impurity

0.2% max

Total impurities

1.0% max

 

Uses:  17 alpha-Estradiol is a kind of estrogen that can promote and regulate the female sex organs and sexual characteristics of normal development. To promote development of ductal hyperplasia, but in larger doses, can inhibit the release of anterior pituitary prolactin, and reduction of milk secretion.

Cosmeceutical use: Anti-aging face creams.

 

Storage:   Stored in cool place, keep container tightly closed in a dry and well-ventilated place.

Shelf life: 2 years in unopened container.

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