The Mestanolone with the cas number 521-11-9, is also called (1) 17-alpha-Methyldihydrotestosterone ; (2) 17alpha-Methyl-5alpha-dihydrotestosterone ; (3) 17alpha-Methylandrostan-17beta-ol-3-one ; (4) 17alpha-Methylandrostanolone ; (5) 17alpha-Methyldihydrotestosterone ; (6) 17alpha-methyl-5alpha-androstan-17beta-ol-3-one ; (7) 17alpha-methylandrostan-3-on-17beta-ol ; (8) 17beta-Hydroxy-17alpha-methyl-5alpha-androstan-3-one ; (9) 5-alpha-Androstane-17-alpha-methyl-17-beta-ol-3-one ; (10) 5alpha-Androstane-17alpha-methyl-17beta-ol-3-one ; (11) Andoron ; (12) Androstalone ; (13) Assimil ; (14) Ermalone (VAN) ; (15) Mestanolona ; (16) Mestanolone ; (17) Mestanolonum ; (18) Methybol ; (19) Methylantalon ; (20) Methyldihydrotestosterone ; (21) Preroide ; (22) Tantarone . It belongs to the following product Categories: (1)Steroids; (2)Biochemistry; (3)Hydroxyketosteroids 

Propertes of Mestanolone: (1)ACD/LogP: 4.29 ; (2)# of Rule of 5 Violations: 0 ; (3)ACD/LogD (pH 5.5): 4.29 ; (4)ACD/LogD (pH 7.4): 4.29 ; (5)ACD/BCF (pH 5.5): 1076.26 ; (6)ACD/BCF (pH 7.4): 1076.26 ; (7)ACD/KOC (pH 5.5): 5150.44 ; (8)ACD/KOC (pH 7.4): 5150.44 ; (9)#H bond acceptors: 2 ; (10)#H bond donors: 1 ; (11)#Freely Rotating Bonds: 1 ; (12)Polar Surface Area: 26.3 Å² ; (13)Index of Refraction: 1.528 ; (14) Molar Refractivity: 88.1 cm³ ; (15)Molar Volume: 286 cm³ ; (16)Polarizability: 34.92 ×10^-24cm³ ; (17)Surface Tension: 39.2 dyne/cm ; (18)Density: 1.064 g/cm³ ; (19)Flash Point: 177.6 °C ; (20)Enthalpy of Vaporization: 77.31 kJ/mol ; (21)Boiling Point: 416.1 °C at 760 mmHg ; (22)Vapour Pressure: 1.16E-08 mmHg at 25°C

The Mestanolone is an orally bioavailable androgenic steroid that is highly androgenic while only slightly anabolic. It is incapable of aromatization and is not an agonist of the progesterone receptor. Dosages range from 10mg to 30mg a day for males. Women should avoid Mestanolone for it is very androgenic. Long term use, more than 12 weeks should be avoided do to hepatoxicity. Since Mestanolone is unable to convert to estrogen, it is very useful during cutting phase's or when one wishes to avoid excess weight gain.

You can still convert the following datas into molecular structure :
1. SMILES: O=C2C[C@@H]1CC[C@@H]3[C@@H]([C@@]1(C)CC2)CC[C@]4([C@H]3CC[C@@]4(O)C)C
2. InChI: InChI=1/C20H32O2/c1-18-9-6-14(21)12-13(18)4-5-15-16(18)7-10-19(2)17(15)8-11-20(19,3)22/h13,15-17,22H,4-12H2,1-3H3/t13-,15+,16-,17-,18-,19-,20-/m0/s1

The Mestanolone toxic data can be showed in the following sheet.