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4,9(11)-Pregnadien-3,20-dione

4,9(11)-Pregnadien-3,20-dione structure

CAS No.: 17652-16-3

Chemical Name:: 4,9(11)-Pregnadien-3,20-dione

Synonyms: Delta-9-Progesterone;9-DEHYDROPROGESTERONE;Progesterone impurity K;Progesterone BP Impurity K;Progesterone EP Impurity K;4,9(11)-Pregnadien-3,20-dione;pregna-4,9(11)-diene-3,20-dione;Pregna-4,9(11)-diene-3,20-dione (90%);Progesterone Impurity 12(Progesterone EP Impurity K);(8S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one

CBNumber:: CB3344664

Molecular Formula:: C21H28O2

Molecular Weight:: 312.45

MDL Number:: MFCD00271689

MOL File:: Mol file

MSDS File:: SDS

Last updated:2026-09-12 18:51:59

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4,9(11)-Pregnadien-3,20-dione Properties

Melting point	125 °C
Boiling point	460.8±45.0 °C(Predicted)
Density	1.10±0.1 g/cm3(Predicted)
solubility	Chloroform (Slightly), Dioxane (Slightly)
form	Solid
color	White to Off-White
FDA UNII	25T39R854K

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P280-P305+P351+P338

4,9(11)-Pregnadien-3,20-dione price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	TRC-P704970-50MG	Pregna-4,9(11)-diene-3,20-dione (90%)	17652-16-3	50mg	$856	2026-06-03	Buy
TRC	TRC-P704970-10MG	Pregna-4,9(11)-diene-3,20-dione (90%)	17652-16-3	10mg	$196	2026-06-03	Buy
TRC	TRC-P704970-100MG	Pregna-4,9(11)-diene-3,20-dione (90%)	17652-16-3	100mg	$1541	2026-06-03	Buy
Biosynth	SAA65216	Pregna-4,9(11)-diene-3,20-dione	17652-16-3	1mg	$900	2026-06-05	Buy
Biosynth	SAA65216	Pregna-4,9(11)-diene-3,20-dione	17652-16-3	10mg	$900	2026-06-05	Buy

Product number	Packaging	Price	Buy
TRC-P704970-50MG	50mg	$856	Buy
TRC-P704970-10MG	10mg	$196	Buy
TRC-P704970-100MG	100mg	$1541	Buy
SAA65216	1mg	$900	Buy
SAA65216	10mg	$900	Buy

4,9(11)-Pregnadien-3,20-dione Chemical Properties, Uses, Production

Uses

4,9(11)-PREGNADIEN-3,20-DIONE is a Progesterone (P755900) impurity, a steroid hormone produced by the corpus luteum. Induces maturation and secretory activity of the uterine endothelium; suppresses ovulation. Progesterone is implicated in the etiology of breast cancer.

4,9(11)-Pregnadien-3,20-dione Preparation Products And Raw materials

Raw materials

Preparation Products

4,9(11)-Pregnadien-3,20-dione Suppliers

Global Suppliers ( 58)

Supplier	Tel	Email	Country	ProdList	Advantage
Quality Control Solutions Ltd.	0755-66853366 13670046396	orders@qcsrm.com	China	18188	56
Shandong Boluoda Biological Technology Co., Ltd.	0531-68651502	2310993908@qq.com	China	3157	58
Shanghai Kewel Chemical Co., Ltd.	021-64609169 18901607656	greensnown@163.com	China	9883	50
BOC Sciences	16314854226	info@bocsci.com	United States	9909	65
Hubei Yangxin Medical Technology Co., Ltd.	15374522761	3003392093@yongstandards.com	China	9995	55
Shenzhen SUNGENING Bio-Medical Co., Ltd.	0755-28967200 13631290199	wxf@sungening.com	China	9609	60
Shenzhen Polymeri Biochemical Technology Co., Ltd.	+86-400-002-6226	sales@rrkchem.com	China	57336	58
Shenzhen Botel Biotechnology Co. Ltd.	13316949107 13316968096	1979313431@qq.com	China	9619	58
TOSUN PHARM	020-66392521-118 18922260391	3004261881@qq.com	China	7994	58
CR Corporation Limited		fred.wen@crcorporation.cn	China	8642	58

Supplier	Advantage
Quality Control Solutions Ltd.	56
Shandong Boluoda Biological Technology Co., Ltd.	58
Shanghai Kewel Chemical Co., Ltd.	50
BOC Sciences	65
Hubei Yangxin Medical Technology Co., Ltd.	55
Shenzhen SUNGENING Bio-Medical Co., Ltd.	60
Shenzhen Polymeri Biochemical Technology Co., Ltd.	58
Shenzhen Botel Biotechnology Co. Ltd.	58
TOSUN PHARM	58
CR Corporation Limited	58

View Latest Price from 4,9(11)-Pregnadien-3,20-dione manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-12-16	Progesterone EP Impurity K 17652-16-3		10mg	95	100000000	Moxin Chemicals

Progesterone EP Impurity K
17652-16-3
95
Moxin Chemicals

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9-DEHYDROPROGESTERONE Progesterone EP Impurity K Progesterone Impurity 12(Progesterone EP Impurity K) pregna-4,9(11)-diene-3,20-dione Pregna-4,9(11)-diene-3,20-dione (90%) (8S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one Progesterone impurity K Progesterone BP Impurity K (8S,10S,13S,14S,17S)-17-Acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one (Progesterone Impurity) (8S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,6,7,8,10,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one Delta-9-Progesterone 4,9(11)-Pregnadien-3,20-dione 17652-16-3