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Steroids and sterols

Almestrone

Also known as Almestrona, 7alpha-Methylestrone, Almestronum

CAS 10448-96-1Formula C19H24O2Molar mass 284.40 g/molEC 686-274-8
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard
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Almestrone chemical structure, C19H24O2, CAS 10448-96-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10448-96-1
Formula
C19H24O2
Molar mass
284.40 g/mol
EC number
686-274-8
HS code
291450
Category
Steroids and sterols

What is Almestrone?

Plain description, key identifiers and synonyms

Almestrone is a chemical substance with the molecular formula C19H24O2 and a molar mass of 284.40 g/mol. Its CAS registry number is 10448-96-1. The IUPAC name is (7R,8R,9S,13S,14S)-3-hydroxy-7,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(7R,8R,9S,13S,14S)-3-hydroxy-7,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
CAS number
10448-96-1 CAS number cross-checked
EC number
686-274-8
Molecular formula
C19H24O2
UNII
N18A31MTB0
InChIKey
JUAJXSMWFOFDFC-MNHDCVOLSA-N
InChI
InChI=1S/C19H24O2/c1-11-9-12-10-13(20)3-4-14(12)15-7-8-19(2)16(18(11)15)5-6-17(19)21/h3-4,10-11,15-16,18,20H,5-9H2,1-2H3/t11-,15-,16+,18-,19+/m1/s1
Canonical SMILES
CC1Cc2cc(O)ccc2C2CCC3(C)C(=O)CCC3C12
Isomeric SMILES
C[C@@H]1CC2=C(C=CC(=C2)O)[C@@H]3[C@@H]1[C@@H]4CCC(=O)[C@]4(CC3)C

Synonyms

  • Almestrona
  • 7alpha-Methylestrone
  • Almestronum
  • Ba 38372
  • 3-Hydroxy-7alpha-methylestra-1,3,5(10)-trien-17-one
  • Almestronum (INN-Latin)
  • Almestrona (INN-Spanish)
  • Estra-1,3,5(10)-trien-17-one, 3-hydroxy-7alpha-methyl-
  • Estra-1,3,5(10)-trien-17-one, 3-hydroxy-7alpha-methyl-(8CI)
  • (7R,8R,9S,13S,14S)-3-hydroxy-7,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
  • 7-Methyl-estrone
  • Estra-1,3,5(10)-trien-17-one,3-hydroxy-7-methyl-, (7a)-
  • 3-hydroxy-7,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
  • 7a-methyl-3-hydroxy-1,3,5(10)-estratrien-17-one
  • 3-Hydroxy-7alpha-methylestra-1(10),2,4-trien-17-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)
4.06calc.
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
1calc.
Fraction sp3 carbons
0.63calc.
Formal charge
0calc.
Stereocentres
5calc.
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=C1CCC2C1CCC1c3ccccc3CCC12

O=C1CCC2C1CCC1c3ccccc3CCC12

4 rings, 18 atoms.

176 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
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
  • H351Suspected of causing cancer.
  • H361Suspected of damaging fertility or the unborn child.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (17)
  • P203Obtain, read and follow all safety instructions before use.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Almestrone suppliers

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Almestrone 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 Almestrone is traded under.

HS 2914.50Indicative HS code

Ketone-phenols and ketones with other oxygen function

World exports in 2024
$438M
+10.9% vs 2023, imports $420M
2019 to 2024
Top exporters
  1. China50.5%
  2. India * partner reported11.6%
  3. United States11.3%
Top importers
  1. United States20.8%
  2. Germany10.0%
  3. Netherlands8.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Almestrone?

Almestrone is a chemical substance with the molecular formula C19H24O2 and a molar mass of 284.40 g/mol. Its CAS registry number is 10448-96-1. The IUPAC name is (7R,8R,9S,13S,14S)-3-hydroxy-7,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one.

What is the CAS number of Almestrone?

The CAS registry number of Almestrone is 10448-96-1.

What is the molecular formula and weight of Almestrone?

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

Is Almestrone hazardous?

Almestrone carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Almestrone?

Almestrone is usually classified under HS code 291450 (Ketone-phenols and ketones with other oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Almestrone?

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What is the price of Almestrone?

Suppliers quote Almestrone 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 Almestrone

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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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