Pharmaceutical Name (Substance): Testosterone Undecanoate

Common Brand/Trade/Commercial denominations: Andriol, Androxon, Panteston, Restandol, Undestor, Virigen, Undriol

Manufacturers: Organon, Asia Pharma

Chemical structure: androsta-4-en-3-one,17b-ol
Chemical name: 17beta-Hydroxyandrost-4-en-3-one undecanoate
Index name: Androst-4-en-3-one, 17-((1-oxoundecyl)oxy)-, (17-beta)

CAS number: 5949-44-0, 58-22-0 (base)
Merck Index Number: Merck 11, 9109
Chemical Formula: C19 H28 O2 (testosterone base)
Chemical Formula: C30 H48 O3

Molecular weight: 456.700 g/mol
Molecular weight of base: 288.429 g/mol
Molecular weight of ester: 186.2936 g/mol (undecanoic acid, 11 carbons)

Active Life: 8-12 hours
Detection Time: 4-5 weeks
Melting Point: 155 Celsius
Anabolic/Androgenic Ratio (Range): 100/100
Drug Class: Androgenic/Anabolic Steroid (Oral)