1-(2-(9-Bromo-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxy-3-methoxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one CAS 119457-28-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 119457-28-2 |
| Molecular Formula | C28H20BrN5O4 |
| Molecular Weight | 570.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(2-(9-Bromo-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxy-3-methoxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one (CAS 119457-28-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C28H20BrN5O4. Molecular weight: 570.39 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C28H20BrN5O4 |
| Molecular Weight | 570.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
Related Bromo Standards
- 5-Bromo-1-(3-fluorophenyl)-N-methyl-1H-pyrazole-4-carboxamide (CAS 98533-44-9)
- 4-bromo-N-[(4-bromophenyl)sulfonyl]-N-(4-chloro-3-methyl-5-isoxazolyl)benzenesulfonamide 478262-49-6 KS-00003G49 (CAS 478262-49-6)
- 5-Bromo-4-chloro-3-indolyl β-D-cellobioside (CAS 177966-52-8)
- Bromo[(2-(hydroxy-κO)methyl)phenylmethyl-κC](triphenylphosphine)palladium(II) (CAS 849417-33-0)
- 212631-67-9 5-Bromo-2-[(2-chloro-4-iodophenyl)amino]-N-(cyclopropylmethoxy)-3,4-difluoro-benzamide 5-Bromo-2-[(2-chloro-4-iodophenyl)amino]-N-(cyclopropylmethoxy)-3,4-difluorobenzamide PD-184161 PF-1529483 PF-3011370 UK-287074 (CAS 212631-67-9)
- 2-Bromo-9,9-bis(6-bromohexyl)-9H-fluorene (CAS 438201-29-7)
- 4-Bromo-2,7-dioctylbenzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 942130-54-3)
- Methyl 4-(2-bromo-4,5-dimethoxyphenyl)-7-(3,4-dimethoxyphenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 494195-03-8)
Recommended Standards
- Rebeccamycin (CAS 93908-02-2)
- (Benzenethiolato)(triphenylphosphine)gold (CAS 14243-58-4)
- N,N-(Dithiodi-2,1-ethanediyl)bis[2,5-dichloro-benzenesulfonamide (CAS 927822-86-4)
- tert-Butyl (2-(hydroxymethyl)-3-methylbutyl)carbamate (CAS 1696524-36-3)
- 4-Cyano-2-(difluoromethyl)-5-hydroxy-3-methylpyridine (CAS 1805356-46-0)
- Daptomycin Impurity 13 (CAS CATO-C4X-137813)
- 3-Methyl-N-phenylbut-2-enamide (CAS 13209-80-8)
- 2,5-Dichloro-3-nitrobenzodifluoride (CAS 1806289-41-7)
- Ethyl 1-methyl-5-nitro-1H-pyrrole-2-carboxylate (CAS 1872-41-9)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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