Pregn-4-ene-3,20-dione,6-methyl-, (6a)-(9CI)

Modify Date: 2025-08-25 15:35:12

Pregn-4-ene-3,20-dione,6-methyl-, (6a)-(9CI) structure	Common Name	Pregn-4-ene-3,20-dione,6-methyl-, (6a)-(9CI)
	CAS Number	903-71-9	Molecular Weight	328.48800
	Density	1.07g/cm3	Boiling Point	453.7ºC at 760mmHg
	Molecular Formula	C₂₂H₃₂O₂	Melting Point	N/A
	MSDS	N/A	Flash Point	169ºC

Name	(6S,8S,9S,10R,13S,14S,17S)-17-acetyl-6,10,13-trimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
Synonym	More Synonyms

Density	1.07g/cm3
Boiling Point	453.7ºC at 760mmHg
Molecular Formula	C₂₂H₃₂O₂
Molecular Weight	328.48800
Flash Point	169ºC
Exact Mass	328.24000
PSA	34.14000
LogP	4.96950
Index of Refraction	1.537

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TU5406000

CHEMICAL NAME :: Pregn-4-ene-3,20-dione, 6-alpha-methyl-

CAS REGISTRY NUMBER :: 903-71-9

LAST UPDATED :: 198910

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C22-H32-O2

MOLECULAR WEIGHT :: 328.54

WISWESSER LINE NOTATION :: L E5 B666 OV MUTJ A1 E1 FV1 L1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 160 mg/kg

SEX/DURATION :: female 1-8 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

REFERENCE :: ACENA7 Acta Endocrinologica (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) V.1- 1948- Volume(issue)/page/year: 54,8,1967

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 500 ug/kg

SEX/DURATION :: female 5 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina

REFERENCE :: ANREAK Anatomical Record. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1906/08- Volume(issue)/page/year: 142,469,1962

6alpha-Methylprogesterone

6|A-methylprogesterone

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