Home/Compounds/API/Megestrol acetate

C₂₄H₃₂O₄

384.5 g/mol

APIDanger

MEGESTROL ACETATE

CAS595-33-5EC209-864-5

Category

API

Compound Class

Steroid

Primary Use

Pharmaceutical Raw Material

Megestrol acetate is a synthetic steroid compound used as an active pharmaceutical ingredient. Regulatory labeling indicates that it may cause cancer and developmental toxicity.

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Restricted or banned substances

Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.

Relevant lists:California Proposition 65

CAS 595-33-5

Related Compounds

SimilarStructure SimilarSimilarity 0.80

Chlormadinone acetate

pharmaceutical raw material

ReferenceSame Category

Algestone

pharmaceutical raw material

ReferenceSame Category

Berberine chloride dihydrate

pharmaceutical raw material

ReferenceSame Category

Sodium oxolinate

pharmaceutical raw material

ReferenceSame Category

Glycopyrronium bromide

pharmaceutical raw material

Referencesame scaffold

(1alpha)-17-(Acetyloxy)-6-chloro-1-(chloromethyl)pregna-4,6-diene-3,20-dione

pharmaceutical raw material

Referencesame scaffold

6-dehydroprogesterone

pharmaceutical raw material

Referencesame scaffold

Potassium canrenoate

pharmaceutical raw material

Safety Reference

Harmful

Health Hazard

Danger

H302Harmful if swallowed

H312Harmful in contact with skin

H332Harmful if inhaled

H341Suspected of causing genetic defects

H350May cause cancer

H351Suspected of causing cancer

H360May damage fertility or the unborn child

H362May cause harm to breast-fed children

H373May cause damage to organs through prolonged or repeated exposure

Regulatory Compliance1

California Proposition 65USRegulation
Listed· listed since 2014-03-28Source

Customs Tariff Classification

The international HS code for MEGESTROL ACETATE (CAS 595-33-5) is 2937.23.

HS code (international, 6-digit)

2937.23

EU CN code (8-digit)

2937 23 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers

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] acetate

InChIKey

RQZAXGRLVPAYTJ-GQFGMJRRSA-N

SMILES

CC1=C[C@@H]2[C@H](CC[C@]3([C@H]2CC[C@@]3(C(=O)C)OC(=O)C)C)[C@@]4(C1=CC(=O)CC4)C

Synonyms (67)