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Steroids and sterols

Megestrol caproate

Also known as Pregna-4,6-diene-3,20-dione, 17-hydroxy-6-methyl-, hexanoate, Pregna-4,6-diene-3,20-dione, 6-methyl-17-[(1-oxohexyl)oxy]-

CAS 65893-91-6Formula C28H40O4Molar mass 440.62 g/mol
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Megestrol caproate chemical structure, C28H40O4, CAS 65893-91-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
65893-91-6
Formula
C28H40O4
Molar mass
440.62 g/mol
HS code
293723
Category
Steroids and sterols

What is Megestrol caproate?

Plain description, key identifiers and synonyms

Megestrol caproate is a chemical substance with the molecular formula C28H40O4 and a molar mass of 440.62 g/mol. Its CAS registry number is 65893-91-6. The IUPAC name is [(8R,9S,10R,13S,14S,17R)-17-acetyl-6,10,13-trimethyl-3-oxo-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthren-17-yl] hexanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(8R,9S,10R,13S,14S,17R)-17-acetyl-6,10,13-trimethyl-3-oxo-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthren-17-yl] hexanoate
CAS number
65893-91-6
Molecular formula
C28H40O4
UNII
QL953XUR5F
InChIKey
XDVHIXRJLWUKRR-ORZTVLAMSA-N
InChI
InChI=1S/C28H40O4/c1-6-7-8-9-25(31)32-28(19(3)29)15-12-23-21-16-18(2)24-17-20(30)10-13-26(24,4)22(21)11-14-27(23,28)5/h16-17,21-23H,6-15H2,1-5H3/t21-,22+,23+,26-,27+,28+/m1/s1
Canonical SMILES
CCCCCC(=O)OC1(C(C)=O)CCC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC21C
Isomeric SMILES
CCCCCC(=O)O[C@@]1(CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2C=C(C4=CC(=O)CC[C@]34C)C)C)C(=O)C

Synonyms

  • Pregna-4,6-diene-3,20-dione, 17-hydroxy-6-methyl-, hexanoate
  • Pregna-4,6-diene-3,20-dione, 6-methyl-17-[(1-oxohexyl)oxy]-

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
440.62 g/molcalc.
Exact mass
440.2927 Dacalc.
LogP (octanol/water)
6.14calc.
Topological polar surface area
60.44 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
6calc.
Heavy atoms
32calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
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=C2C=CC3C4CCCC4CCC3C2CC1

O=C1C=C2C=CC3C4CCCC4CCC3C2CC1

4 rings, 18 atoms.

106 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.

Megestrol caproate suppliers

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Megestrol 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 Megestrol caproate is traded under.

HS 2937.23Indicative HS code

Oestrogens and progestogens

World exports in 2024
$762M
−2.3% vs 2023, imports $693M
2019 to 2024
Top exporters
  1. China42.9%
  2. Italy18.4%
  3. Netherlands8.9%
Top importers
  1. India * partner reported12.1%
  2. United States11.0%
  3. Belgium8.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Megestrol caproate?

Megestrol caproate is a chemical substance with the molecular formula C28H40O4 and a molar mass of 440.62 g/mol. Its CAS registry number is 65893-91-6. The IUPAC name is [(8R,9S,10R,13S,14S,17R)-17-acetyl-6,10,13-trimethyl-3-oxo-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthren-17-yl] hexanoate.

What is the CAS number of Megestrol caproate?

The CAS registry number of Megestrol caproate is 65893-91-6.

What is the molecular formula and weight of Megestrol caproate?

The molecular formula of Megestrol caproate is C28H40O4 and its molar mass is 440.62 g/mol.

Is Megestrol caproate hazardous?

No GHS hazard classification for Megestrol caproate 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 Megestrol caproate?

Megestrol caproate is usually classified under HS code 293723 (Oestrogens and progestogens). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Megestrol caproate?

Post a free request on CompoundList and suppliers of Megestrol caproate will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Megestrol caproate?

Suppliers quote Megestrol 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 Megestrol 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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