Equilenin , ≥98% , 517-09-9

Synonym(s):
3-Hydroxy-1,3,5(10),6,8-estrapentaen-17-one

CAS NO.：517-09-9

Empirical Formula: C18H18O2

Molecular Weight: 266.33

MDL number: MFCD00003619

EINECS: 208-230-5

PRODUCT Properties

• Melting point: 258-259°
• alpha: D16 +87° (12.8 mg made up to 1.8 ml in dioxane)
• Boiling point: 349.54°C (rough estimate)
• Density: 1.1305 (rough estimate)
• refractive index: 1.4800 (estimate)
• Flash point: 2 °C
• storage temp.: 2-8°C
• solubility: DMSO (Slightly), Methanol (Slightly, Heated)
• pka: pKa 9.72 (H2O t=25.0±0.02 ) (Uncertain);9.75±0.06 (Uncertain)
• form: Solid
• color: Pale Yellow to Light Beige
• optical activity: +10025 (1% in dioxane)
• Water Solubility: 1.52mg/L(25 ºC)

Description and Uses

Equilenin is a naturally occuring estrogenic steroidal hormone (1,2) isolated from urine of pregnant mares (3). Not found in human urine. Component of conjugated estrogenic hormones. Estrogen. This compound is a contaminant of emerging concern (CECs). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.

Safety

• Symbol(GHS): GHS02,GHS07
• Signal word: Danger
• Hazard statements: H225-H302-H312-H319-H332
• Precautionary statements: P210-P280-P305+P351+P338
• Hazard Codes: F,Xn
• Risk Statements: 11-20/21/22-36-48-40
• Safety Statements: 16-26-36-36/37
• RIDADR: UN 1648 3/PG 2
• WGK Germany: 2