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Impurities and reference standards

Testosterone caproate

Also known as Testosterone hexanoate, 17beta-Hydroxyandrost-4-en-3-one hexanoate, Testosterone, hexanoate

CAS 10312-45-5Formula C25H38O3Molar mass 386.58 g/molEC 233-690-9
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard
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Testosterone caproate chemical structure, C25H38O3, CAS 10312-45-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10312-45-5
Formula
C25H38O3
Molar mass
386.58 g/mol
EC number
233-690-9
HS code
293729
Category
Impurities and reference standards

What is Testosterone caproate?

Plain description, key identifiers and synonyms

Testosterone caproate is a chemical substance with the molecular formula C25H38O3 and a molar mass of 386.58 g/mol. Its CAS registry number is 10312-45-5. The IUPAC name is [(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] hexanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] hexanoate
CAS number
10312-45-5 CAS number cross-checked
EC number
233-690-9
Molecular formula
C25H38O3
UNII
7CC0L7J83H
InChIKey
WIGTZVOQGIFMAV-BKWLFHPQSA-N
InChI
InChI=1S/C25H38O3/c1-4-5-6-7-23(27)28-22-11-10-20-19-9-8-17-16-18(26)12-14-24(17,2)21(19)13-15-25(20,22)3/h16,19-22H,4-15H2,1-3H3/t19-,20-,21-,22-,24-,25-/m0/s1
Canonical SMILES
CCCCCC(=O)OC1CCC2C3CCC4=CC(=O)CCC4(C)C3CCC12C
Isomeric SMILES
CCCCCC(=O)O[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@]34C)C

Synonyms

  • Testosterone hexanoate
  • 17beta-Hydroxyandrost-4-en-3-one hexanoate
  • Testosterone, hexanoate
  • [(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] hexanoate
  • Testosterone 17-caproate
  • Testosterone caprylate
  • 3-Oxoandrost-4-en-17beta-yl hexanoate
  • Testosterone enantate impurity b
  • (17.Beta.)-17-((1-oxohexyl)oxy)androst-4-en-3-one
  • Androst-4-en-3-one, 17-((1-oxohexyl)oxy)-, (17.beta.)-
  • ((8R,9S,10R,13S,14S,17S)-10,13-Dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta(a)phenanthren-17-yl) hexanoate
  • Testosterone caprylate (nflis-drug)
  • Testosterone enantate impurity b (ep impurity)
  • Androst-4-en-3-one, 17-((1-oxohexyl)oxy)-, (17beta)-
  • (17Beta)-17-((1-oxohexyl)oxy)androst-4-en-3-one
  • 3-oxoandrost-4-en-17-yl hexanoate
  • Testosterone Impurity N7
  • Testosterone caproate CRS
  • Testosterone enanthate Impurity 1
  • (8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl hexanoate

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
386.58 g/molcalc.
Exact mass
386.2821 Dacalc.
LogP (octanol/water)
6.01calc.
Topological polar surface area
43.37 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
5calc.
Heavy atoms
28calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.84calc.
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, 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

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H350May cause cancer.
  • H361Suspected of damaging fertility or the unborn child.
Precautionary statements (9)
  • P203Obtain, read and follow all safety instructions before use.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P330Rinse mouth.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Testosterone caproate suppliers

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Testosterone caproate 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 Testosterone caproate is traded under.

HS 2937.29Indicative HS code

Steroidal hormones, their derivatives and structural analogues, other

World exports in 2024
$2.32B
+5.7% vs 2023, imports $2.41B
2019 to 2024
Top exporters
  1. Belgium25.3%
  2. United States24.9%
  3. China13.0%
Top importers
  1. Italy18.0%
  2. Canada13.0%
  3. Belgium12.2%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Testosterone caproate, based on the data on this page

What is Testosterone caproate?

Testosterone caproate is a chemical substance with the molecular formula C25H38O3 and a molar mass of 386.58 g/mol. Its CAS registry number is 10312-45-5. The IUPAC name is [(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] hexanoate.

What is the CAS number of Testosterone caproate?

The CAS registry number of Testosterone caproate is 10312-45-5.

What is the molecular formula and weight of Testosterone caproate?

The molecular formula of Testosterone caproate is C25H38O3 and its molar mass is 386.58 g/mol.

Is Testosterone caproate hazardous?

Testosterone caproate carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause cancer, suspected of damaging fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Testosterone caproate?

Testosterone caproate is usually classified under HS code 293729 (Steroidal hormones, their derivatives and structural analogues, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Testosterone caproate?

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What is the price of Testosterone caproate?

Suppliers quote Testosterone caproate 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 Testosterone caproate

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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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