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Steroids and sterols

9beta,10alpha-Testosterone

Also known as Retrotestosterone, Lumitestosterone, Retrosterone

CAS 571-41-5Formula C19H28O2Molar mass 288.43 g/mol
Controlled, licensed buyers only
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9beta,10alpha-Testosterone chemical structure, C19H28O2, CAS 571-41-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
571-41-5
Formula
C19H28O2
Molar mass
288.43 g/mol
HS code
291440
Category
Steroids and sterols

What is 9beta,10alpha-Testosterone?

Plain description, key identifiers and synonyms

9beta,10alpha-Testosterone is a chemical substance with the molecular formula C19H28O2 and a molar mass of 288.43 g/mol. Its CAS registry number is 571-41-5. The IUPAC name is (8R,9R,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(8R,9R,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
CAS number
571-41-5 CAS number cross-checked
Molecular formula
C19H28O2
InChIKey
MUMGGOZAMZWBJJ-UESMBRTFSA-N
InChI
InChI=1S/C19H28O2/c1-18-9-7-13(20)11-12(18)3-4-14-15-5-6-17(21)19(15,2)10-8-16(14)18/h11,14-17,21H,3-10H2,1-2H3/t14-,15-,16+,17-,18+,19-/m0/s1
Canonical SMILES
CC12CCC(=O)C=C1CCC1C2CCC2(C)C(O)CCC12
Isomeric SMILES
C[C@]12CC[C@@H]3[C@H]([C@@H]1CC[C@@H]2O)CCC4=CC(=O)CC[C@@]34C

Synonyms

  • Retrotestosterone
  • Lumitestosterone
  • Retrosterone
  • 9-beta,10-alpha-Testosterone
  • 17-beta-Hydroxy-9-beta,10-alpha-androst-4-en-3-one
  • 9-beta,10-alpha-ANDROST-4-EN-3-ONE, 17-beta-HYDROXY-
  • Androst-4-en-3-one, 17-hydroxy-, (9-beta,10-alpha,17-beta)-
  • Androst-4-en-3-one, 17-hydroxy-, (9-beta,10-alpha,17-beta)-(9CI)
  • (8R,9R,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
  • (8R,9R,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one
  • 17beta-Hydroxy-9beta,10alpha-androst-4-en-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
288.43 g/molcalc.
Exact mass
288.2089 Dacalc.
LogP (octanol/water)
3.88calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
21calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.84calc.
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=C1C=C2CCC3C4CCCC4CCC3C2CC1

O=C1C=C2CCC3C4CCCC4CCC3C2CC1

4 rings, 18 atoms.

1,419 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.

9beta,10alpha-Testosterone suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Controlled or monitored substance

9beta,10alpha-Testosterone is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for 9beta,10alpha-Testosterone with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

9beta,10alpha-Testosterone 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

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

Controlled or monitored substance

9beta,10alpha-Testosterone is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Our policy on controlled substances

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 9beta,10alpha-Testosterone is traded under.

HS 2914.40Indicative HS code

Ketone-alcohols and ketone-aldehydes

World exports in 2024
$199M
+2.5% vs 2023, imports $247M
2019 to 2024
Top exporters
  1. China29.5%
  2. Germany14.4%
  3. Netherlands12.7%
Top importers
  1. United States37.2%
  2. Netherlands8.5%
  3. Germany6.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 9beta,10alpha-Testosterone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 9beta,10alpha-Testosterone, based on the data on this page

What is 9beta,10alpha-Testosterone?

9beta,10alpha-Testosterone is a chemical substance with the molecular formula C19H28O2 and a molar mass of 288.43 g/mol. Its CAS registry number is 571-41-5. The IUPAC name is (8R,9R,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one.

What is the CAS number of 9beta,10alpha-Testosterone?

The CAS registry number of 9beta,10alpha-Testosterone is 571-41-5.

What is the molecular formula and weight of 9beta,10alpha-Testosterone?

The molecular formula of 9beta,10alpha-Testosterone is C19H28O2 and its molar mass is 288.43 g/mol.

Is 9beta,10alpha-Testosterone hazardous?

No GHS hazard classification for 9beta,10alpha-Testosterone 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 9beta,10alpha-Testosterone?

9beta,10alpha-Testosterone is usually classified under HS code 291440 (Ketone-alcohols and ketone-aldehydes). This is indicative, confirm it with your customs broker before shipping.

Can I buy 9beta,10alpha-Testosterone on CompoundList?

9beta,10alpha-Testosterone is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle 9beta,10alpha-Testosterone

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
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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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