Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Mestanolone
Price: ￥638.0/1g ￥2198.0/5g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Mestanolone
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

521-11-9

521-11-9 structure

Name: Mestanolone
Chemical Name: Mestanolone
CAS Number: 521-11-9
Molecular Formula: C₂₀H₃₂O₂
Molecular Weight: 304.467
Catalog: API Hormone and endocrine-regulating drugs Androgen and anabolic hormone drugs
Create Date: 2018-02-16 08:00:00
Modify Date: 2025-08-20 16:20:41

Name	Mestanolone
Synonyms	17a-Methylandrostan-17b-ol-3-one Anabo Tantaron 17b-Hydroxy-17-methyl-5a-androstan-3-one 17a-Methylandrostan-3-on-17b-ol EINECS 208-302-6 5α-Androstan-3-one, 17β-hydroxy-17-methyl- Assimil Preroide Androstan-3-one, 17-hydroxy-17-methyl-, (5α,17β)- 17a-Methylandrostanolone 17β-Hydroxy-17-methyl-5α-androstan-3-one Antalone mestanolone (5α,17β)-17-Hydroxy-17-methylandrostan-3-one 17β-Hydroxy-17α-methyl-5α-androstan-3-one Methybol Andoron (5S,8R,9S,10S,13S,14S,17S)-17-Hydroxy-10,13,17-trimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-one Duramin Mestanolone (JAN) 17α-Methyl-17β-hydroxy-5α-androstan-3-one Prohormo (5a,17b)-17-Hydroxy-17-methylandrostan-3-one MFCD00021158 17α-Methylandrostan-17β-ol-3-one 17α-Methyldihydrotestosterone

Density	1.1±0.1 g/cm3
Boiling Point	416.1±38.0 °C at 760 mmHg
Melting Point	191 °C
Molecular Formula	C₂₀H₃₂O₂
Molecular Weight	304.467
Flash Point	177.6±19.4 °C
Exact Mass	304.240234
PSA	37.30000
LogP	4.29
Vapour Pressure	0.0±2.2 mmHg at 25°C
Index of Refraction	1.528
Storage condition	Controlled Substance, -20?C Freezer

CHEMICAL IDENTIFICATION

RTECS NUMBER :: BV8064500

CHEMICAL NAME :: 5-alpha-Androstan-3-one, 17-beta-hydroxy-17-methyl-

CAS REGISTRY NUMBER :: 521-11-9

BEILSTEIN REFERENCE NO. :: 3207223

LAST UPDATED :: 199612

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C20-H32-O2

MOLECULAR WEIGHT :: 304.52

WISWESSER LINE NOTATION :: L E5 B666 OVTJ A1 E1 FQ F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >3 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,817,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,817,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,817,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >3 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,817,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1240 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,817,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,817,1982 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 160 mg/kg

SEX/DURATION :: female 14-21 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - urogenital system

REFERENCE :: ENDOAO Endocrinology (Baltimore). (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21203) V.1- 1917- Volume(issue)/page/year: 94,979,1974

Symbol	GHS08
Signal Word	Warning
Hazard Statements	H351
Precautionary Statements	P281
Personal Protective Equipment	Eyeshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	Xn
Risk Phrases	R40
Safety Phrases	S22-S36
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	BV8064500
HS Code	2937290017

641-82-7

~88%

521-11-9

Literature: Chhikara, Bhupender S.; Chandra, Ramesh; Tandon, Vibha Tetrahedron Letters, 2004 , vol. 45, # 41 p. 7585 - 7588

3275-64-7

521-11-9

Literature: Cross,A.D. et al. Journal of Medicinal and Pharmaceutical Chemistry, 1962 , vol. 5, p. 406 - 408

481-29-8

521-11-9

Literature: Gauthier, Julie; Poirier, Donald; Ayotte, Christiane Steroids, 2012 , vol. 77, # 6 p. 635 - 643

58-18-4

641-82-7

521-11-9

Literature: Syntex S.A. Patent: US2763670 , 1955 ;

641-82-7

64-19-7

521-11-9

Literature: Ruzicka; Meister; Prelog Helvetica Chimica Acta, 1947 , vol. 30, p. 867,873

HS Code	2937290017

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