Impurities
AY-0065-004
Azelastine EP Impurity B (HCl)
C14H22ClN3O
Confirm availabilityView details ↗
Impurity reference standard material
Azelastine EP Impurity E
Material overview
Azelastine EP Impurity E (AY-0065-005) — impurity reference standard material. CAS 20526-97-0, formula C15H9ClO2, molecular weight 256.68 g/mol. Request technical documentation and current availability.
Confirm availability
Technical identifiers
- Catalog number
- AY-0065-005
- CAS number
- 20526-97-0
- Molecular formula
- C15H9ClO2
- Molecular weight
- 256.68 g/mol
- Category
- Impurity reference standard material
- Chemical name
- 3-[(4-chlorophenyl)methylidene]-2-benzofuran-1-one
- Synonyms
- Azelastine Related Compound E (USP); 1(3H)-Isobenzofuranone,3-[(4-chlorophenyl)methylene]; 3-[(4-Chlorophenyl)methylene]-1(3H)-isobenzofuranone; 3-(4-Chlorobenzal)phthalide
- SMILES
- C1=CC=C2C(=C1)C(=CC3=CC=C(C=C3)Cl)OC2=O
- 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.