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Steroids and sterols

Androstan-3-one

Also known as 5alpha-Androstan-3-one, 5 alpha-androstan-3-one, Androstan-3-one, (5alpha)-

CAS 1224-95-9Formula C19H30OMolar mass 274.45 g/mol
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Androstan-3-one chemical structure, C19H30O, CAS 1224-95-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1224-95-9
Formula
C19H30O
Molar mass
274.45 g/mol
HS code
291429
Category
Steroids and sterols

What is Androstan-3-one?

Plain description, key identifiers and synonyms

Androstan-3-one is a chemical substance with the molecular formula C19H30O and a molar mass of 274.45 g/mol. Its CAS registry number is 1224-95-9. The IUPAC name is (5S,8S,9S,10S,13S,14S)-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(5S,8S,9S,10S,13S,14S)-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
CAS number
1224-95-9Other or deprecated CAS: 118371-41-8
Molecular formula
C19H30O
UNII
1MTS8QN3OK
InChIKey
VMNRNUNYBVFVQI-QYXZOKGRSA-N
InChI
InChI=1S/C19H30O/c1-18-9-3-4-16(18)15-6-5-13-12-14(20)7-11-19(13,2)17(15)8-10-18/h13,15-17H,3-12H2,1-2H3/t13-,15-,16-,17-,18-,19-/m0/s1
Canonical SMILES
CC12CCCC1C1CCC3CC(=O)CCC3(C)C1CC2
Isomeric SMILES
C[C@@]12CCC[C@H]1[C@@H]3CC[C@H]4CC(=O)CC[C@@]4([C@H]3CC2)C

Synonyms

  • 5alpha-Androstan-3-one
  • 5 alpha-androstan-3-one
  • Androstan-3-one, (5alpha)-
  • (5S,8S,9S,10S,13S,14S)-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
  • (5?)-Androstan-3-one
  • (3aS,3bS,5aS,9aS,9bS,11aS)-9a,11a-dimethyl-hexadecahydro-1H-cyclopenta[a]phenanthren-7-one
  • (5~{S},8~{S},9~{S},10~{S},13~{S},14~{S})-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
  • 5-Alpha-androstan-3-one
  • 5a-androstan-3-one
  • Steroid scaffold, 12
  • (5alpha)-Androstan-3-one
  • (5S,8S,10S,13S)-10,13-Dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-one

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
274.45 g/molcalc.
Exact mass
274.2297 Dacalc.
LogP (octanol/water)
4.99calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
20calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.95calc.
Formal charge
0calc.
Stereocentres
6calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CCC2C(CCC3C4CCCC4CCC23)C1

O=C1CCC2C(CCC3C4CCCC4CCC23)C1

4 rings, 18 atoms.

338 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Androstan-3-one suppliers

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All 2 suppliers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

2 suppliers in 2 countries

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Androstan-3-one price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Androstan-3-one is traded under.

HS 2914.29Indicative HS code

Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function, other

World exports in 2024
$1B
+6.6% vs 2023, imports $980M
2019 to 2024
Top exporters
  1. China32.5%
  2. India * partner reported12.9%
  3. Germany12.3%
Top importers
  1. United States15.7%
  2. Japan8.7%
  3. Germany8.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Androstan-3-one is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Androstan-3-one, based on the data on this page

What is Androstan-3-one?

Androstan-3-one is a chemical substance with the molecular formula C19H30O and a molar mass of 274.45 g/mol. Its CAS registry number is 1224-95-9. The IUPAC name is (5S,8S,9S,10S,13S,14S)-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one.

What is the CAS number of Androstan-3-one?

The CAS registry number of Androstan-3-one is 1224-95-9. Other or deprecated CAS numbers: 118371-41-8.

What is the molecular formula and weight of Androstan-3-one?

The molecular formula of Androstan-3-one is C19H30O and its molar mass is 274.45 g/mol.

Is Androstan-3-one hazardous?

No GHS hazard classification for Androstan-3-one is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Androstan-3-one?

Androstan-3-one is usually classified under HS code 291429 (Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Androstan-3-one?

CompoundList lists 2 suppliers of Androstan-3-one in United States and Vietnam. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Androstan-3-one?

Suppliers quote Androstan-3-one on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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