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Androstenedione

Also known as: 4-Androstenedione, 4-Androstene-3,17-dione, Androst-4-ene-3,17-dione, delta4-Androstenedione, 17-Ketotestosterone, Testosterone EP Impurity A, 4-AD, Androstenedione (JAN), Androstenedione (CRM)

Androstenedione (CAS 63-05-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H26O2 and a molecular weight of 286.409 g/mol. Key properties include a melting point of 170-173ºC, a boiling point of 431.4±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 161.1±25.7 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
63-05-8
Jingsj CID
J-21576-9
Molecular Formula
C19H26O2
Molecular Weight
286.409 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point170-173ºC
Boiling Point431.4±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point161.1±25.7 °C
Exact Mass286.193268
PSA34.14000
LogP2.90
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.552

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code29372900

Frequently Asked Questions

What is the CAS number of Androstenedione?

The CAS number of Androstenedione is 63-05-8.

What are the molecular formula and molecular weight of Androstenedione?

Androstenedione has molecular formula C19H26O2 and molecular weight 286.409 g/mol.

Is Androstenedione hazardous?

Androstenedione has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of Androstenedione?

For Androstenedione, Upstream Products: 5β-Androstane-3,17-dione, Testosterone, Cortodoxone; Downstream Products: 11β-Hydroxyandrost-4-ene-3,17-dione, 11α-Hydroxyandrost-4-ene-3,17-dione, 19-Hydroxyandrost-4-ene-3,17-dione.

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

Last updated:

How to cite: Jingsj. "Androstenedione (CAS 63-05-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21576-9 (accessed 2026-11-09).

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