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Steroids and sterols

Methyltrienolone

Also known as Metribolone, Metribolona, 17alpha-Methyltrienolone

CAS 965-93-5Formula C19H24O2Molar mass 284.40 g/molEC 663-842-3
GHS signal word: Warning. Pictograms: Harmful or irritant 12 suppliers listed
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Methyltrienolone chemical structure, C19H24O2, CAS 965-93-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
965-93-5
Formula
C19H24O2
Molar mass
284.40 g/mol
EC number
663-842-3
HS code
293729
Category
Steroids and sterols

What is Methyltrienolone?

Plain description, key identifiers and synonyms

17beta-hydroxy-17-methylestra-4,9,11-trien-3-one is a synthetic non-aromatisable androgen and anabolic steroid. It binds strongly to the androgen receptor and has therefore also been used as an affinity label for this receptor in the prostate and in prostatic tumors. It has a role as an androgen. It is a 17beta-hydroxy steroid, a 3-oxo steroid and an anabolic androgenic steroid. It derives from a hydride of an estrane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(8S,13S,14S,17S)-17-hydroxy-13,17-dimethyl-1,2,6,7,8,14,15,16-octahydrocyclopenta[a]phenanthren-3-one
CAS number
965-93-5 CAS number cross-checked
EC number
663-842-3
Molecular formula
C19H24O2
UNII
2C323EGI97
InChIKey
CCCIJQPRIXGQOE-XWSJACJDSA-N
InChI
InChI=1S/C19H24O2/c1-18-9-7-15-14-6-4-13(20)11-12(14)3-5-16(15)17(18)8-10-19(18,2)21/h7,9,11,16-17,21H,3-6,8,10H2,1-2H3/t16-,17+,18+,19+/m1/s1
Canonical SMILES
CC1(O)CCC2C3CCC4=CC(=O)CCC4=C3C=CC21C
Isomeric SMILES
C[C@@]1(CC[C@@H]2[C@@]1(C=CC3=C4CCC(=O)C=C4CC[C@@H]23)C)O

Synonyms

  • Metribolone
  • Metribolona
  • 17alpha-Methyltrienolone
  • Metribolonum
  • Ru-1881
  • RU 1881
  • 17-beta-Hydroxy-17-methylestra-4,9,11-trien-3-one
  • (8S,13S,14S,17S)-17-hydroxy-13,17-dimethyl-1,2,6,7,8,14,15,16-octahydrocyclopenta[a]phenanthren-3-one
  • estra-4,9,11-trien-3-one, 17-hydroxy-17-methyl-, (17beta)-
  • Ru1881
  • (8S,13S,14S,17S)-17-hydroxy-13,17-dimethyl-1,2,6,7,8,14,15,16-octahydrocyclopenta(a)phenanthren-3-one
  • 17 beta-Hydroxy-17 alpha-methylestra-4,9,11-trien-3-one
  • 17beta-Hydroxy-17-methylestra-4,9,11-trien-3-one
  • [3H]methyltrienolone
  • (17Beta)-17-hydroxy-17-methylestra-4,9,11-trien-3-one
  • 17-methyloestra-4,9,11-trien-3-one,17beta-ol
  • Metribolone (1.0mg/ml in Acetonitrile)
  • (8S,13S,14S,17S)-17-hydroxy-13,17-dimethyl-1,2,6,7,8,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one
  • Methyl trienolone
  • 1xow
  • (1S,3aS,3bS,11aS)-1-hydroxy-1,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,11aH-cyclopenta[a]phenanthren-7-one
  • 1e3g
  • 2ao6
  • Estra-4,9,11-trien-3-one, 17-hydroxy-17-methyl-, (17b)-
  • [3H]R1881
Show all 29 synonyms
  • [3H]-R1881
  • 17-alpha-Methyltrienolone
  • Metribolone (1 mg/ml in Acetonitrile)
  • 17-beta-Hydroxy-17-methylestra-4,11-trien-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
284.40 g/molcalc.
Exact mass
284.1776 Dacalc.
LogP (octanol/water)
3.72calc.
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
0.63calc.
Formal charge
0calc.
Stereocentres
4calc.
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=C2CCC3C(=C2CC1)C=CC1CCCC13

O=C1C=C2CCC3C(=C2CC1)C=CC1CCCC13

4 rings, 18 atoms.

25 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H319Causes serious eye irritation.
Precautionary statements (4)
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P337 + P317If eye irritation persists: Get medical help.

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

Methyltrienolone suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 12 suppliers
12 of 12 offers

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

12 suppliers in 3 countries

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Methyltrienolone price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • agonist
  • androgen
  • hormone
  • molecular messenger
  • sex hormone

Regulatory status

Inventories, regulations and trade controls that list this substance

Controls

  • US DEA controlled substance or listed chemical

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Methyltrienolone 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 Methyltrienolone is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Methyltrienolone, based on the data on this page

What is Methyltrienolone?

17beta-hydroxy-17-methylestra-4,9,11-trien-3-one is a synthetic non-aromatisable androgen and anabolic steroid. It binds strongly to the androgen receptor and has therefore also been used as an affinity label for this receptor in the prostate and in prostatic tumors. It has a role as an androgen.

What is the CAS number of Methyltrienolone?

The CAS registry number of Methyltrienolone is 965-93-5.

What is the molecular formula and weight of Methyltrienolone?

The molecular formula of Methyltrienolone is C19H24O2 and its molar mass is 284.40 g/mol.

What is Methyltrienolone used for?

Known uses and roles of Methyltrienolone include agonist, androgen, hormone, molecular messenger and sex hormone.

Is Methyltrienolone hazardous?

Methyltrienolone carries the GHS signal word "Warning". Main hazards: causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Methyltrienolone?

Methyltrienolone 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 Methyltrienolone?

CompoundList lists 12 suppliers of Methyltrienolone in China, United States and France. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Methyltrienolone?

Suppliers quote Methyltrienolone 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 Methyltrienolone

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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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