Mestanolone

Modify Date: 2025-08-20 16:20:41

Mestanolone Structure
Mestanolone structure
 Common Name Mestanolone
CAS Number 521-11-9 Molecular Weight 304.467
Density 1.1±0.1 g/cm3 Boiling Point 416.1±38.0 °C at 760 mmHg
Molecular Formula C20H32O2 Melting Point 191 °C
MSDS Chinese USA Flash Point 177.6±19.4 °C
Symbol GHS08
GHS08		 Signal Word Warning

 Names

Name Mestanolone
Synonym More Synonyms

 Chemical & Physical Properties

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

 Toxicological Information

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

 Safety Information

Symbol GHS08
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

 Customs

HS Code 2937290017

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 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
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