Remimazolam Impurity 5 CAS 1276185-51-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1276185-51-3 |
| Molecular Formula | C18H18BrN3O4 |
| Molecular Weight | 420.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Remimazolam Impurity 5 (CAS 1276185-51-3) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H18BrN3O4. Molecular weight: 420.26 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H18BrN3O4 |
| Molecular Weight | 420.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Remimazolam Standards
- Remimazolam Impurity 2 (CAS 960305-91-3)
- Remimazolam Impurity 17 (CAS CATO-C4X-282317)
- Remimazolam Impurity 1 (CAS 1275616-59-5)
- Remimazolam Impurity 4 (CAS 308242-23-1)
- Remimazolam Impurity 6 (CAS 1449295-47-9)
- Remimazolam Impurity 1 (CAS CATO-C4X-28231)
- Remimazolam Impurity 12 (CAS 308243-65-4)
- Remimazolam Impurity 11 (CAS CATO-C4X-282311)
Recommended Standards
- 446286-06-2 2-(Methylsulfanyl)-4-(tributylstannyl)-1,3-thiazole DTXSID00676709 (CAS 446286-06-2)
- (3E,5E)-4-{[3,5-bis(trifluoromethyl)phenyl]amino}-6-(dimethylamino)-1,1,1-trifluorohexa-3,5-dien-2-one (CAS 338416-16-3)
- 7-[(E)-2-[(2,5-Difluorophenyl)methylidene]hydrazin-1-yl]-2,4-bis(trifluoromethyl)-1,8-naphthyridine (CAS 338962-14-4)
- Atenolol EP Impurity J HCI (CAS CATO-C4X-154923)
- Oseltamivir Impurity 245 (CAS 2765792-93-4)
- n-(Cyclopentylmethyl)-3,4-difluoroaniline (CAS 1021125-72-3)
- n-(2-Aminoethyl)-1-phenylmethanesulfonamide (CAS 190257-50-2)
- 1-Benzyl-4-(5-fluoropyridin-3-yl)piperazine (CAS 1713160-01-0)
- (E)-N'-(4-(2,4-dimethylthiazol-5-yl)pyrimidin-2-yl)-N-hydroxyformimidamide (CAS 566149-74-4)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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