Basic information
- Name:
Androst-1-en-3-one,17-(acetyloxy)-1-methyl-, (5a,17b)-
- Superlist Name:
- Methenolone acetate
- CAS No.:
434-05-9
- Molecular Structure:

- Formula:
- C22H32O3
- Molecular Weight:
- 344.54
- Synonyms:
- 5a-Androst-1-en-3-one, 17b-hydroxy-1-methyl-, acetate(6CI,8CI);1-Methyl-17b-hydroxy-5a-androst-1-en-3-oneacetate;1-Methyl-17b-hydroxy-5a-androst-1-en-3-one-17b-acetate;1-Methyl-5a-androst-1-en-17b-ol-3-one acetate;17b-Hydroxy-1-methyl-5a-androst-1-en-3-one acetate;Methenolone 17-acetate;Methenolone acetate;NSC 74226;Nibal;Primobolan;Primobolan Tablets;Primobolone;Primonabol;SH 567;SH567a;SQ 16496;
- EINECS:
- 207-097-0
- Density:
- 1.1 g/cm3
- Boiling Point:
- 441.2 °C at 760 mmHg
- Flash Point:
- 189.9 °C
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Specification
The Methenolone acetate has the cas register number 434-05-9, and it has the systematic name of (5alpha)-1-methyl-3-oxoandrost-1-en-17-yl acetate. This chemical is a kind of white or almost white crystalline powder. Besides, its product categories are including steroids.
The characteristics of this chemical are as follows: (1)ACD/LogP: 4.93; (2)ACD/LogD (pH 5.5): 4.92; (3)ACD/LogD (pH 7.4): 4.92; (4)ACD/BCF (pH 5.5): 3258.08; (5)ACD/BCF (pH 7.4): 3258.08; (6)ACD/KOC (pH 5.5): 11380.8; (7)ACD/KOC (pH 7.4): 11380.8; (8)#H bond acceptors: 3; (9)#Freely Rotating Bonds: 2; (10)Polar Surface Area: 43.37; (11)Index of Refraction: 1.536; (12)Molar Refractivity: 97.3 cm3; (13)Molar Volume: 311.8 cm3; (14)Polarizability: 38.57×10-24 cm3; (15)Surface Tension: 41.2 dyne/cm; (16)Density: 1.1 g/cm3; (17)Flash Point: 189.9 °C; (18)Enthalpy of Vaporization: 69.85 kJ/mol; (19)Boiling Point: 441.2 °C at 760 mmHg; (20)Vapour Pressure: 5.54E-08 mmHg at 25°C; (21)Exact Mass: 344.235145; (22)MonoIsotopic Mass: 344.235145; (23)Topological Polar Surface Area: 43.4; (24)Heavy Atom Count: 25; (25)Complexity: 635.
In addition, you could obtain the molecular structure by converting the following datas:
(1)SMILES:CC(=O)OC1CC[C@H]2[C@@H]3CC[C@H]4CC(=O)\C=C(\C)[C@]4(C)[C@H]3CC[C@]12CCopyCopied
(2)InChI:InChI=1/C22H32O3/c1-13-11-16(24)12-15-5-6-17-18-7-8-20(25-14(2)23)21(18,3)10-9-19(17)22(13,15)4/h11,15,17-20H,5-10,12H2,1-4H3/t15-,17-,18-,19-,20?,21-,22-/m0/s1
Below are the toxicity information of this chemical:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | > 2gm/kg (2000mg/kg) | Drugs in Japan Vol. -, Pg. 1370, 1995. | |
| mouse | LD50 | oral | > 4gm/kg (4000mg/kg) | Drugs in Japan Vol. -, Pg. 1370, 1995. | |
| rat | LD50 | oral | > 4gm/kg (4000mg/kg) | Drugs in Japan Vol. -, Pg. 1370, 1995. |

