Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI)

Modify Date: 2025-09-29 10:32:21

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure
Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) structure
 Common Name Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI)
CAS Number 1236-09-5 Molecular Weight 314.46200
Density 1.08g/cm3 Boiling Point 440.1ºC at 760mmHg
Molecular Formula C21H30O2 Melting Point N/A
MSDS N/A Flash Point 164.2ºC

 Names

Name pregn-5-ene-3,20-dione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.08g/cm3
Boiling Point 440.1ºC at 760mmHg
Molecular Formula C21H30O2
Molecular Weight 314.46200
Flash Point 164.2ºC
Exact Mass 314.22500
PSA 34.14000
LogP 4.72350
Vapour Pressure 6.03E-08mmHg at 25°C
Index of Refraction 1.542

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TU5002000
CHEMICAL NAME :
Pregn-5-ene-3,20-dione
CAS REGISTRY NUMBER :
1236-09-5
BEILSTEIN REFERENCE NO. :
3102499
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C21-H30-O2
MOLECULAR WEIGHT :
314.51

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Parenteral
DOSE :
35 mg/kg
SEX/DURATION :
female 7 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
JEMEAV Journal of Experimental Medicine. (Rockefeller Univ. Press, 1230 York Ave., New York, NY 10021) V.1- 1896- Volume(issue)/page/year: 102,347,1955

 Synthetic Route

Pregnenolone structure

Pregnenolone

CAS#:145-13-1

~75%

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: Bhati, Nishi; Sarma, Kuladip; Goswami, Amrit Synthetic Communications, 2008 , vol. 38, # 9 p. 1416 - 1424
1-(3-Hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethanone structure

1-(3-Hydroxy-10...

CAS#:38372-24-6

~96%

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: Bortolini, O.; Campestrini, S.; Furia, F. Di; Modena, G.; Valle, G. Journal of Organic Chemistry, 1987 , vol. 52, # 24 p. 5467 - 5469
Progesterone structure

Progesterone

CAS#:57-83-0

~77%

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: D'Incan, E.; Viout, P. Tetrahedron, 1984 , vol. 40, # 18 p. 3421 - 3424
Pregnenolone structure

Pregnenolone

CAS#:145-13-1

~2%

Pregn-4-ene-3,6,20-trione structure

Pregn-4-ene-3,6...

CAS#:2243-08-5

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

6β-hydroxyprogesterone structure

6β-hydroxyproge...

CAS#:604-19-3

Literature: Solaja, Bogdan A.; Mili, Dragana R.; Do, Ljiljana I. Steroids, 1994 , vol. 59, # 5 p. 330 - 334
Pregnenolone structure

Pregnenolone

CAS#:145-13-1

~15%

Pregn-4-ene-3,6,20-trione structure

Pregn-4-ene-3,6...

CAS#:2243-08-5

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: Acosta, C. Kirk; Rao, Pemmaraju N.; Kim, Hyun K. Steroids, 1993 , vol. 58, # 5 p. 205 - 208
2-(10,13-dimethyl-1,2,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-yl)propanenitrile structure

2-(10,13-dimeth...

CAS#:58462-92-3

~%

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: Freerksen, Robert W.; Selikson, Sandra J.; Wroble, Randall R.; Kyler, S. Keith; Watt, David S. Journal of Organic Chemistry, 1983 , vol. 48, # 22 p. 4087 - 4096
Pregnenolone structure

Pregnenolone

CAS#:145-13-1

~%

Progesterone structure

Progesterone

CAS#:57-83-0

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: Herl, Vanessa; Frankenstein, Joerdis; Meitinger, Nadine; Mueller-Uri, Frieder; Kreis, Wolfgang Planta Medica, 2007 , vol. 73, # 7 p. 704 - 710
3-pyrrolidino-pregna-3,5-dien-20-one structure

3-pyrrolidino-p...

CAS#:805-33-4

~%

Pregn-5-ene-3,20-dione(6CI,7CI,8CI,9CI) Structure

Pregn-5-ene-3,2...

CAS#:1236-09-5

Literature: Bucourt,R.; Dube,J. Bulletin de la Societe Chimique de France, 1974 , p. 479 - 483

 Synonyms

Pregn-5-en-3,20-dion
5-Pregnene-3,20-dione
Pregn-5-ene-3,20-dione
isoprogesterone
(8S,9S,10R,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,4,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
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