Estradiol
[CAS# 50-28-2]

Identification

• Classification: API >> Hormone and endocrine-regulating drugs >> Estrogen and progestogen drugs
• Name: Estradiol
• Synonyms: 1,3,5-Estratriene-3,17beta-diol; 17beta-Estradiol; 3,17beta-Dihydroxy-1,3,5(10)-estratriene; Dihydrofolliculin
• Molecular Formula: C₁₈H₂₄O₂
• Molecular Weight: 272.38
• CAS Registry Number: 50-28-2
• EC Number: 200-023-8

Properties

• Melting point: 173 ºC

Safety Data

• Hazard Symbols: T
• Risk Codes: R45
• Safety Description: S53;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Carcinogenicity	Carc.	2	H351
Reproductive toxicity	Repr.	1A	H360
Carcinogenicity	Carc.	1A	H350
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Reproductive toxicity	Lact.	-	H362
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Reproductive toxicity	Repr.	1B	H360
Reproductive toxicity	Repr.	1A	H360FD
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413
Carcinogenicity	Carc.	1B	H350
Reproductive toxicity	Repr.	2	H361