C12H9F3N2O2
270.21 g/mol
APIWarning
Teriflunomide
CAS163451-81-8
Category
API
Compound Class
Amide
Primary Use
Pharmaceutical Raw Material
Teriflunomide is an active pharmaceutical ingredient and the active metabolite of leflunomide. It was investigated in a Phase III clinical trial for multiple sclerosis.
active pharmaceutical ingredient for pharmaceutical manufacturingresearch compound for multiple sclerosis studies
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.
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Related Compounds
ReferenceSame Category
Vilazodone hydrochloride
CAS163521-08-2
pharmaceutical raw material
ReferenceSame Category
Vilazodone
CAS163521-12-8
pharmaceutical raw material
ReferenceSame Category
Pazufloxacin mesilate
CAS163680-77-1
pharmaceutical raw material
ReferenceSame Category
Cangrelor
CAS163706-06-7
pharmaceutical raw material
Referencestereoisomer of
2-Cyano-3-hydroxy-N-(4-trifluoromethylphenyl)crotonamide
CAS108605-62-5
pharmaceutical intermediate
Safety Reference
Warning
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for Teriflunomide (CAS 163451-81-8) is 2926.90.
HS code (international, 6-digit)
2926.90
EU CN code (8-digit)
2926 90 70
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
(Z)-2-cyano-3-hydroxy-N-[4-(trifluoromethyl)phenyl]but-2-enamide
InChIKey
UTNUDOFZCWSZMS-YFHOEESVSA-N
SMILES
C/C(=C(\C#N)/C(=O)NC1=CC=C(C=C1)C(F)(F)F)/O
Synonyms (37)
- A26
- Leflunomide EP Impurity B
- Leflunomide EP Impurity B (Teriflunomide)
- Teriflunomide (USAN)
- (E/Z)-Teriflunomide
- A77 1726
- Aubagio
- Aubagio (TN)
- Flucyamide
- LEFLUNOMIDE IMPURITY B
- SU 20
- Teriflunomide
- Teriflunomide (Standard)
- Teriflunomide CRS
- Teriflunomide for assay CRS
- Teriflunomide((E/Z) Mixture)
- TeriflunomideA 77-1726
- teriflunomida
- teriflunomidum
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