C23H30O3
354.5 g/mol
APIDanger
Etretinate
CAS54350-48-0EC259-119-3
Category
API
Compound Class
Ester
Primary Use
Pharmaceutical Raw Material
Etretinate is a second-generation retinoid that was used as an active pharmaceutical ingredient in medications for severe psoriasis. It was developed by Hoffmann–La Roche and approved by the FDA in 1986, but later withdrawn from several markets due to a high risk of birth defects.
pharmaceutical raw material for retinoid-based formulationsreference standard in analytical 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 54350-48-0
Related Compounds
SimilarStructure SimilarSimilarity 0.83
Butyl 9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate
CAS54757-45-8
pharmaceutical intermediate
SimilarStructure SimilarSimilarity 0.83
Butyl (2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate
CAS74479-40-6
pharmaceutical intermediate
SimilarStructure SimilarSimilarity 0.75
Acitretin Impurity 10
CAS74479-46-2
pharmaceutical intermediate
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Safety Reference
Danger
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects
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 Etretinate (CAS 54350-48-0) is 2918.99.
HS code (international, 6-digit)
2918.99
EU CN code (8-digit)
2918 99 90
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
ethyl (2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate
InChIKey
HQMNCQVAMBCHCO-DJRRULDNSA-N
SMILES
CCOC(=O)/C=C(\C)/C=C/C=C(\C)/C=C/C1=C(C(=C(C=C1C)OC)C)C
Synonyms (35)
- Acitretin EP Impurity B; Etretinate
- Etretinate (JAN/USAN/INN)
- Etretinato [INN-Spanish]
- Etretinatum [INN-Latin]
- ACITRETIN IMPURITY B
- B10 9359
- ETRETINATE [MART.]
- Ethyl etrinoate
- Etretinate (Standard)
- Etretinato
- Etretinatum
- Etrinoate, Ethyl
- Retinoid
- Ro 10-9359
- TEGISON (TN)
- Tegison
- Tigason
- Tigazon
- etretinate