Diclofenac EP Impurity B CAS 22121-58-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 22121-58-0 |
| Molecular Formula | C13H9Cl2NO |
| Molecular Weight | 266.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Diclofenac EP Impurity B (CAS 22121-58-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H9Cl2NO. Molecular weight: 266.12 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H9Cl2NO |
| Molecular Weight | 266.12 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Diclofenac Standards
- Diclofenac potassium Impurity 7 (CAS CATO-C4X-10517)
- Diclofenac Impurity 18 (CAS 60805-30-3)
- Diclofenac Impurity 20 (CAS 60805-31-4)
- Diclofenac impurity 5 (CAS CATO-C4X-16145)
- Diclofenac EP Impurity C (CAS 27204-57-5)
- Diclofenac Impurity 11 (CAS 51550-51-7)
- Diclofenac sodium Impurity 7 (CAS 127792-34-1)
- Diclofenac Impurity 20 (CAS 15362-44-4)
Recommended Standards
- Lorazepam EP Impurity A (CAS 2958-36-3)
- Lorazepam Impurity 12 (CAS 837-58-1)
- Brimonidine Impurity 22 (CAS 134892-46-9)
- Albendazole EP Impurity K (CAS 70484-51-4)
- Ruxolitinib Impurity 78 (CAS CATO-C4X-205878)
- (5E)-5-({4-[(3-chlorophenyl)methoxy]phenyl}methylidene)-1,3-thiazolidine-2,4-dione (CAS 157375-63-8)
- Methyl 5-cyanobicyclo[3.1.1]Heptane-1-carboxylate (CAS 2168895-44-9)
- Nintedanib Impurity 61 (CAS 2117628-65-4)
- 5-(3-Chloropropyl)-3-methyl-1,2,4-oxadiazole (CAS 1156949-76-6)
- 915019-08-8 55R7RG342O Tertomotide [INN] Human telomerase reverse transcriptase (EC 2.7.7.49)-(611-626)-peptide (telomerase catalytic subunit fragment) Tertomotide UNII-55R7RG342O GV 1001 GV-1001 (CAS 915019-08-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com