Impurities
AY-0581-004
Leflunomide Related Compound B
C12H9F3N2O2
Confirm availabilityView details ↗
Impurity reference standard material
Leflunomide EP Impurity B
Material overview
Leflunomide EP Impurity B (AY-0581-003) — impurity reference standard material. CAS 163451-81-8, formula C12H9F3N2O2, molecular weight 270.21 g/mol. Request technical documentation and current availability.
Confirm availability
Technical identifiers
- Catalog number
- AY-0581-003
- CAS number
- 163451-81-8
- Molecular formula
- C12H9F3N2O2
- Molecular weight
- 270.21 g/mol
- Category
- Impurity reference standard material
- Chemical name
- (Z)-2-cyano-3-hydroxy-N-[4-(trifluoromethyl)phenyl]but-2-enamide
- Synonyms
- Leflunomide Related Compound B (USP); (2Z)-2-Cyano-3-hydroxy-N-[4-(trifluoromethyl)phenyl]but-2-enamide; (Z)-2-Cyano-3-hydroxy-N-(4-(trifluoromethyl)phenyl)but-2-enamide
- SMILES
- C/C(=C(\C#N)/C(=O)NC1=CC=C(C=C1)C(F)(F)F)/O
- Appearance
- White Solid
- Light sensitive
- No
- Hygroscopic
- No
Request this material
Ask about current availability, documentation, or a pack size for your program.
Request a quotationAvailable pack sizes
Contact us for pack options.
Storage
Refrigerator
Similar items
View all related materialsNeed help selecting a material?
Our catalog team can help confirm fit, grade, and availability.