CompoundList
Sign in
Hormones and steroids

Fluoxymesterone

Also known as Halotestin, Fluoxymestrone, Androfluorene

CAS 76-43-7Formula C20H29FO3Molar mass 336.45 g/molEC 200-961-8
GHS signal word: Warning. Pictograms: Serious health hazard 17 suppliers listed
Get quotes Compare 17 suppliers
Fluoxymesterone chemical structure, C20H29FO3, CAS 76-43-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals
Melting point
Ca. 240
Solubility
Soluble in pyridine, slightly soluble in acetone, chloroform, sparingly soluble in metha…
HS code
293729
Category
Hormones and steroids
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Fluoxymesterone?

Plain description, key identifiers and synonyms

Fluoxymesterone is a 17beta-hydroxy steroid, an 11beta-hydroxy steroid, a 3-oxo-Delta(4) steroid, an anabolic androgenic steroid and a fluorinated steroid. It has a role as an antineoplastic agent and an anabolic agent.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(8S,9R,10S,11S,13S,14S,17S)-9-fluoro-11,17-dihydroxy-10,13,17-trimethyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
CAS number
76-43-7 CAS number cross-checked
EC number
200-961-8
Molecular formula
C20H29FO3
UNII
9JU12S4YFY
InChIKey
YLRFCQOZQXIBAB-RBZZARIASA-N
InChI
InChI=1S/C20H29FO3/c1-17-8-6-13(22)10-12(17)4-5-15-14-7-9-19(3,24)18(14,2)11-16(23)20(15,17)21/h10,14-16,23-24H,4-9,11H2,1-3H3/t14-,15-,16-,17-,18-,19-,20-/m0/s1
Canonical SMILES
CC1(O)CCC2C3CCC4=CC(=O)CCC4(C)C3(F)C(O)CC21C
Isomeric SMILES
C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@]2([C@H](C[C@]4([C@H]3CC[C@]4(C)O)C)O)F

Synonyms

  • Halotestin
  • Fluoxymestrone
  • Androfluorene
  • Androfluorone
  • Fluoximesterone
  • Fluotestin
  • Oratestin
  • Ultandren
  • Testoral
  • Android-f
  • Ora-Testryl
  • Androsterolo
  • Flusteron
  • Flutestos
  • Oralsterone
  • Ultandrene
  • Fluoximesteronum
  • Neo-Ormonal
  • Ora Testryl
  • Fluoximesterona
  • Fluoxymesteronum
  • Fluossimesterone
  • Androxy
  • Halodrin
  • Fluoxymesterone ciii
Show all 39 synonyms
  • 9-Fluoro-11beta,17beta-dihydroxy-17-methylandrost-4-en-3-one
  • 9alpha-Fluoro-11beta-hydroxy-17-methyltestosterone
  • (8S,9R,10S,11S,13S,14S,17S)-9-fluoro-11,17-dihydroxy-10,13,17-trimethyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
  • Testosterone, 9-fluoro-11beta-hydroxy-17-methyl-
  • 9-alpha-Fluoro-11-beta-hydroxy-17-methyltestosterone
  • 17-alpha-Methyl-9-alpha-fluoro-11-beta-hydroxytesterone
  • 9-Fluoro-11-beta,17-beta-dihydroxy-17-methylandrost-4-en-3-one
  • 17alpha-Methyl-9alpha-fluoro-11beta-hydroxytesterone
  • 11beta,17beta-Dihydroxy-9alpha-fluoro-17alpha-methyl-4-androsten-3-one
  • 11-beta,17-beta-Dihydroxy-9-alpha-fluoro-17-alpha-methyl-4-androster-3-one
  • Androst-4-en-3-one, 9-fluoro-11,17-dihydroxy-17-methyl-, (11beta,17beta)-
  • Fluoximesteron
  • Androst-4-en-3-one, 9-fluoro-11beta,17beta-dihydroxy-17-methyl-
  • 11beta,17beta-Dihydroxy-9alpha-fluoro-17alpha-methyl-4-androster-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

Appearance
Crystalsexp.
Odour
ODORLESSexp.
Taste
TASTELESSexp.
Melting point
Ca. 240exp.
Solubility
Soluble in pyridine, slightly soluble in acetone, chloroform, sparingly soluble in methanol, practically insoluble in water, ether, benzene, hexanesexp.

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
336.45 g/molcalc.
Exact mass
336.2101 Dacalc.
LogP (octanol/water)
3.33calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
24calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.85calc.
Formal charge
0calc.
Stereocentres
7calc.
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

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H361Suspected of damaging fertility or the unborn child.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • 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

Fluoxymesterone suppliers

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

All 17 suppliers
17 of 17 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

17 suppliers in 3 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Fluoxymesterone 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Use classes: Pharmaceuticals.

Pharmacological actions

  • Anabolic Agents

Roles

  • agonist
  • anabolic agent
  • antineoplastic agent
  • hormone
  • molecular messenger
  • pharmaceutical

Functional uses

  • Pharmaceutical

Pharmacology

Fluoxymesterone is an Androgen. The mechanism of action of fluoxymesterone is as an Androgen Receptor Agonist.

How it is made

Preparation ... Cf herr, us patent 2813881 (1957 to upjohn).

From 17-methyltestosterone first by introduction of hydroxyl group at position 11 through oxidation with microorganism (such as pestalotia or aspergillus), followed by dehydration, epoxidation & treatment with mercury ...

Prepared from 17-alpha-methyltestosterone by conversion into the 11-alpha- hydroxy derivative by microbiological oxidation with Rhizopus, tosylation at C-11, followed by elimination ... yields the 9,11-ene, addition of hypobromous acid ... (yields) the 9-beta, 11-beta-epoxide, hydrogen fluoride fission of the epoxide ring yields fluoxymesterone

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 Fluoxymesterone 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 Fluoxymesterone is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Fluoxymesterone?

Fluoxymesterone is a 17beta-hydroxy steroid, an 11beta-hydroxy steroid, a 3-oxo-Delta(4) steroid, an anabolic androgenic steroid and a fluorinated steroid. It has a role as an antineoplastic agent and an anabolic agent.

What is the CAS number of Fluoxymesterone?

The CAS registry number of Fluoxymesterone is 76-43-7.

What is the molecular formula and weight of Fluoxymesterone?

The molecular formula of Fluoxymesterone is C20H29FO3 and its molar mass is 336.45 g/mol.

What is Fluoxymesterone used for?

Use classes: Pharmaceuticals.

Is Fluoxymesterone hazardous?

Fluoxymesterone carries the GHS signal word "Warning". Main hazards: 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 Fluoxymesterone?

Fluoxymesterone 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 Fluoxymesterone?

CompoundList lists 17 suppliers of Fluoxymesterone in China, United States and Spain. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Fluoxymesterone?

Suppliers quote Fluoxymesterone 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 Fluoxymesterone

Get quotes for Fluoxymesterone

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Fluoxymesterone
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Fluoxymesterone with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/fluoxymesterone-76-43-7" title="Fluoxymesterone structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Hormones and steroids or HS code 293729

17 suppliers
Free quotes, contact stays private
Get quotes