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Steroids and sterols

4-Hydroxy mestranol

Also known as (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-4,17-diol, NIOSH/RC8945050, 19-Nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-4,17-diol, 3-methoxy-

CAS 65694-22-6Formula C21H26O3Molar mass 326.44 g/mol
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4-Hydroxy mestranol chemical structure, C21H26O3, CAS 65694-22-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
65694-22-6
Formula
C21H26O3
Molar mass
326.44 g/mol
HS code
290950
Category
Steroids and sterols

What is 4-Hydroxy mestranol?

Plain description, key identifiers and synonyms

4-Hydroxy mestranol is a chemical substance with the molecular formula C21H26O3 and a molar mass of 326.44 g/mol. Its CAS registry number is 65694-22-6. The IUPAC name is (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-4,17-diol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-4,17-diol
CAS number
65694-22-6 CAS number cross-checked
Molecular formula
C21H26O3
InChIKey
SRAITNKTWXKYDH-QOGIMEQTSA-N
InChI
InChI=1S/C21H26O3/c1-4-21(23)12-10-17-15-5-6-16-13(7-8-18(24-3)19(16)22)14(15)9-11-20(17,21)2/h1,7-8,14-15,17,22-23H,5-6,9-12H2,2-3H3/t14-,15-,17+,20+,21+/m1/s1
Canonical SMILES
C#CC1(O)CCC2C3CCc4c(ccc(OC)c4O)C3CCC21C
Isomeric SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C3C=CC(=C4O)OC

Synonyms

  • (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-4,17-diol
  • NIOSH/RC8945050
  • 19-Nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-4,17-diol, 3-methoxy-
  • 3-Methoxy-19-nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-4,17-diol
  • (17alpha)-3-Methoxy-19-norpregna-1,3,5(10)-trien-20-yne-4,17-diol
  • 3-Methoxy-17alpha-19-norpregna-1,3,5(10)-trien-20-yne-4,17-diol

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
326.44 g/molcalc.
Exact mass
326.1882 Dacalc.
LogP (octanol/water)
3.62calc.
Topological polar surface area
49.69 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
24calc.
Rings
4calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.62calc.
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, c1ccc2c(c1)CCC1C2CCC2CCCC21

c1ccc2c(c1)CCC1C2CCC2CCCC21

4 rings, 17 atoms.

585 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.

4-Hydroxy mestranol suppliers

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4-Hydroxy mestranol 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 4-Hydroxy mestranol is traded under.

HS 2909.50Indicative HS code

Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or…

World exports in 2024
$284M
+11.9% vs 2023, imports $291M
2019 to 2024
Top exporters
  1. India * partner reported32.9%
  2. Indonesia17.7%
  3. France * partner reported11.2%
Top importers
  1. China20.7%
  2. United States12.0%
  3. Brazil6.8%

* Partner reported figures, a lower bound.

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

The HS code shown for 4-Hydroxy mestranol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Hydroxy mestranol, based on the data on this page

What is 4-Hydroxy mestranol?

4-Hydroxy mestranol is a chemical substance with the molecular formula C21H26O3 and a molar mass of 326.44 g/mol. Its CAS registry number is 65694-22-6. The IUPAC name is (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-4,17-diol.

What is the CAS number of 4-Hydroxy mestranol?

The CAS registry number of 4-Hydroxy mestranol is 65694-22-6.

What is the molecular formula and weight of 4-Hydroxy mestranol?

The molecular formula of 4-Hydroxy mestranol is C21H26O3 and its molar mass is 326.44 g/mol.

Is 4-Hydroxy mestranol hazardous?

No GHS hazard classification for 4-Hydroxy mestranol 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 4-Hydroxy mestranol?

4-Hydroxy mestranol is usually classified under HS code 290950 (Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Hydroxy mestranol?

Post a free request on CompoundList and suppliers of 4-Hydroxy mestranol will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 4-Hydroxy mestranol?

Suppliers quote 4-Hydroxy mestranol 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 4-Hydroxy mestranol

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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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