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Steroids and sterols

5alpha-Androstane

Also known as (5alpha)Androstane, Androstane, (5alpha)-, 5 alpha-androstane

CAS 438-22-2Formula C19H32Molar mass 260.47 g/molEC 207-116-2
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5alpha-Androstane chemical structure, C19H32, CAS 438-22-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
438-22-2
Formula
C19H32
Molar mass
260.47 g/mol
EC number
207-116-2
HS code
290219
Category
Steroids and sterols

What is 5alpha-Androstane?

Plain description, key identifiers and synonyms

5alpha-androstane is the 5alpha-stereoisomer of androstane. It has a role as a human metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(5R,8S,9S,10S,13S,14S)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene
CAS number
438-22-2 CAS number cross-checked
EC number
207-116-2
Molecular formula
C19H32
UNII
KT649U81FE
InChIKey
QZLYKIGBANMMBK-UGCZWRCOSA-N
InChI
InChI=1S/C19H32/c1-18-11-5-7-16(18)15-9-8-14-6-3-4-12-19(14,2)17(15)10-13-18/h14-17H,3-13H2,1-2H3/t14-,15+,16+,17+,18+,19+/m1/s1
SMILES
C[C@@]12CCC[C@H]1[C@@H]3CC[C@H]4CCCC[C@@]4([C@H]3CC2)C

Synonyms

  • (5alpha)Androstane
  • Androstane, (5alpha)-
  • 5 alpha-androstane
  • Etioallocholane
  • 5-alpha-Androstane
  • Aetioallocholan
  • 5alpha-Androstan
  • (5R,8S,9S,10S,13S,14S)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene
  • 5alpha,14alpha-Androstane
  • 5|A-Androstane
  • 5?-Androstane
  • (3aS,3bS,5aR,9aS,9bS,11aS)-9a,11a-dimethyl-hexadecahydro-1H-cyclopenta[a]phenanthrene
  • Androstane
  • ST 19:0
  • 5alpha-Androstane 100 |Ig/mL in Acetonitrile
  • 5alpha-Androstane 100 microg/mL in Acetonitrile

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
260.47 g/molcalc.
Exact mass
260.2504 Dacalc.
LogP (octanol/water)
5.81calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
19calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
6calc.
Lipinski rule of five
Passes (1 violation)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, C1CCC2C(C1)CCC1C3CCCC3CCC21

C1CCC2C(C1)CCC1C3CCCC3CCC21

4 rings, 17 atoms.

1,694 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.

5alpha-Androstane suppliers

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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

1 supplier in 1 country

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5alpha-Androstane price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

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 5alpha-Androstane is traded under.

HS 2902.19Indicative HS code

Cyclanes, cyclenes and cycloterpenes, other

World exports in 2024
$979M
+24.3% vs 2023, imports $1B
2019 to 2024
Top exporters
  1. China23.4%
  2. United States20.6%
  3. Germany13.6%
Top importers
  1. India * partner reported9.9%
  2. United States9.8%
  3. South Korea9.5%

* Partner reported figures, a lower bound.

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

The HS code shown for 5alpha-Androstane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 5alpha-Androstane, based on the data on this page

What is 5alpha-Androstane?

5alpha-androstane is the 5alpha-stereoisomer of androstane. It has a role as a human metabolite.

What is the CAS number of 5alpha-Androstane?

The CAS registry number of 5alpha-Androstane is 438-22-2.

What is the molecular formula and weight of 5alpha-Androstane?

The molecular formula of 5alpha-Androstane is C19H32 and its molar mass is 260.47 g/mol.

What is 5alpha-Androstane used for?

Known uses and roles of 5alpha-Androstane include animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and metabolite.

Is 5alpha-Androstane hazardous?

No GHS hazard classification for 5alpha-Androstane 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 5alpha-Androstane?

5alpha-Androstane is usually classified under HS code 290219 (Cyclanes, cyclenes and cycloterpenes, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 5alpha-Androstane?

CompoundList lists 1 supplier of 5alpha-Androstane in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 5alpha-Androstane?

Suppliers quote 5alpha-Androstane 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

Practical guides that help when you source, ship or handle 5alpha-Androstane

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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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