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Mesterolone

Also known as: 17β-Hydroxy-1α-methyl-5α-androstan-3-one, 17beta-hydroxy-1alpha-methyl-5alpha-androstan-3-one, 1α-Methyl-5α-dihydrotestosterone, 1a-Methyl-5a-dihydrotestosterone, 1-alpha-methyl-5-alpha-androstan-17-beta-ol-3-one, Androstan-3-one, 17-hydroxy-1-methyl-, (1α,5α,17β)-, 5α-Androstan-3-one, 17β-hydroxy-1α-methyl-, MFCD00133082, Proviron, androviron, mesterolon, mesteranum, mestoranum, EINECS 215-836-3

Mesterolone (CAS 1424-00-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C20H32O2 and a molecular weight of 304.467 g/mol. Key properties include a melting point of 208 °C, a boiling point of 420.3±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 179.4±21.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1424-00-6
Jingsj CID
J-1341042-9
Molecular Formula
C20H32O2
Molecular Weight
304.467 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point208 °C
Boiling Point420.3±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point179.4±21.3 °C
Exact Mass304.240234
PSA37.30000
LogP4.24
Vapor Pressure0.0±2.2 mmHg at 25°C
Refractive Index1.525

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled

Customs & Trade Information

HS Code2942000000

Frequently Asked Questions

What is the CAS number of Mesterolone?

The CAS number of Mesterolone is 1424-00-6.

What are the molecular formula and molecular weight of Mesterolone?

Mesterolone has molecular formula C20H32O2 and molecular weight 304.467 g/mol.

Is Mesterolone hazardous?

Mesterolone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of Mesterolone?

For Mesterolone, Upstream Products: Metenolone, Stanolone benzoate, Methylmagnesium bromide.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Mesterolone (CAS 1424-00-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1341042-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.