Crisaborole Impurity 39 CAS 13321-76-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13321-76-1 |
| Molecular Formula | C7H6Br2O |
| Molecular Weight | 265.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Crisaborole Impurity 39 (CAS 13321-76-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H6Br2O. Molecular weight: 265.93 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H6Br2O |
| Molecular Weight | 265.93 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Br-containing |
Related Crisaborole Standards
- Crisaborole Impurity 40 (CAS 13321-75-0)
- Crisaborole lmpurity 70 (CAS CATO-C4X-202170)
- Crisaborole Impurity 66 (CAS 2247957-30-6)
- Crisaborole Impurity 54 (CAS 2990481-66-6)
- Crisaborole Impurity 140 (CAS CATO-C4X-2021140)
- Crisaborole Impurity 17 (CAS 1187188-59-5)
- Crisaborole Impurity 49 (CAS CATO-C4X-202149)
- Crisaborole Impurity 16 (CAS 906673-43-6)
Recommended Standards
- (4,6-Dibromopyridin-2-yl)methanamine (CAS 1393577-18-8)
- 4,5-Dibromo-2-cyclopropyl-1H-imidazole (CAS 1269233-20-6)
- 3,5-Dibromo-4-methylphenol (CAS 13979-81-2)
- 5-(3-Ethoxyphenyl)nicotinic acid (CAS 1048273-45-5)
- 6-Bromo-4-chloro-2-methylbenzo[d]oxazole (CAS 1426320-94-6)
- N-(2-Acetylphenyl)-4-methylpentanamide (CAS 1042640-27-6)
- 6-Chloro-4-methanesulfonyl-N-[(3-methoxyphenyl)methyl]-3,4-dihydro-2H-1,4-benzoxazine-2-carboxamide (CAS 866142-58-7)
- 1-(2-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)piperidine (CAS 2377608-45-0)
- Upadacitinib Impurity 120 (CAS CATO-C4X-2405120)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
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