C20H28O2
300.4 g/mol
APIDanger
Isotretinoin
CAS4759-48-2EC225-296-0
Category
API
Compound Class
Organic Acid
Primary Use
Pharmaceutical Raw Material
Isotretinoin is a pharmaceutical compound known for its potent biological activity. It has been identified by an independent committee of scientific and health experts as capable of causing developmental toxicity.
dermatologic agentteratogen in research
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 4759-48-2
Related Compounds
SimilarStructure SimilarSimilarity 0.77
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pharmaceutical raw material
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pharmaceutical raw material
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Rhein
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pharmaceutical raw material
Referencestereoisomer of
Alitretinoin
CAS5300-03-8
pharmaceutical raw material
Referencestereoisomer of
9-cis,13-cis-Retinoic acid
CAS5352-74-9
research compound
Referencestereoisomer of
Tretinoin
CAS302-79-4
pharmaceutical raw material
Safety Reference
Danger
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H360May damage fertility or the unborn child
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Isotretinoin (CAS 4759-48-2) is 2936.21.
HS code (international, 6-digit)
2936.21
EU CN code (8-digit)
2936 21 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
(2Z,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenoic acid
InChIKey
SHGAZHPCJJPHSC-XFYACQKRSA-N
SMILES
CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C\C(=O)O)/C)/C
Synonyms (66)
- 13-RA
- Isotretinoin (JAN/USP)
- Isotretinoin (USP)
- Isotretinoin, European Pharmacopoeia (EP)
- Isotretinoin, United States Pharmacopeia (USP)
- Isotretinoin; Tretinoin EP Impurity A
- Isotretinoine [INN-French]
- Isotretinoino [INN-Spanish]
- Isotretinoinum [INN-Latin]
- (7E,9E,11E,13Z)-retinoic acid
- 13-cRA
- 13-cis-Retinoate
- 13-cis-Retinoic acid
- 13-cis-Vitamin A acid
- ABSORICA LD
- Absorica
- Absorica (TN)
- Accutane
- Accutane (TN)
- Amnesteem
- CIP-Isotretinoin
- Cistane
- Claravis
- Epuris
- ISOTRETINOIN [MART.]
- Isosuprea Lidose
- Isotane
- Isotretinoin
- Isotretinoin (Standard)
- Isotretinoin CRS
- Isotretinoine
- Isotretinoinum
- Isotrex
- Isotrexin
- Myorisan
- Neovitamin A acid
- Oratane
- RETINOIC ACID, 13-cis-
- Retinoic acid 13-cis-form
- Ro 4-3780
- Roaccutan
- Roaccutane
- Roacutan
- Sotret
- Sotret (TN)
- TRETINOIN IMPURITY A
- Teriosal
- Tretinoin(Retinoic acid?
- Vitamin a acid, 13-cis
- Zenatane
- accure
- cis-RA
- cis-Retinoate
- cis-Retinoic acid
- isotretinoina
- isotretinoino