Title: Stanozolol
CAS Registry Number: 10418-03-8 (2¢H form); 302-96-5 (1¢H form)
CAS Name: (5a,17b)-17-Methyl-2¢H-androst-2-eno[3,2-c]pyrazol-17-ol
Additional Names: 1,2,3,3a,3b,4,5,5a,6,8,10,10a,10b,11,12,12a-hexadecahydro-1,10a,12a-trimethylcyclopenta[7,8]phenanthro[2,3-c]pyrazol-1-ol; 17b-hydroxy-17a-methylandrostano[3,2-c]pyrazole; androstanazole; stanazol
Manufacturers' Codes: NSC-43193; Win-14833
Trademarks: Stromba (Winthrop); Strombaject (Winthrop); Winstrol (Zambon)
Molecular Formula: C21H32N2O
Molecular Weight: 328.49
Percent Composition: C 76.78%, H 9.82%, N 8.53%, O 4.87%
Literature References: Prepn: Clinton et al., J. Am. Chem. Soc. 81, 1513 (1959); 83, 1478 (1961); Manson, US 3030358 (1962 to Sterling Drug).
Properties: Crystals from alc, mp 229.8-242.0°. [a]D +35.7° (chloroform); [a]D +48.6° (methanol). uv max: 223 nm (e 4740).
Melting point: mp 229.8-242.0°
Optical Rotation: [a]D +35.7° (chloroform); [a]D +48.6° (methanol)
Absorption maximum: uv max: 223 nm (e 4740)
NOTE: This is a controlled substance (anabolic steroid): 21 CFR, 1308.13, as defined in 1300.01.
Therap-Cat: Androgen.
Therap-Cat-Vet: Anabolic steroid.
Keywords: Androgen.

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