1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxy-3-methoxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one CAS 119457-16-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 119457-16-8 |
| Molecular Formula | C28H20ClN5O4 |
| Molecular Weight | 525.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxy-3-methoxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one (CAS 119457-16-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C28H20ClN5O4. Molecular weight: 525.94 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C28H20ClN5O4 |
| Molecular Weight | 525.94 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 | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chloro Standards
- 6-(2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-3-(pyrrolidine-1-carbonyl)-3a,4,4a,7a,8,8a-hexahydro-5H-4,8-methanoisoxazolo[4,5-f]isoindole-5,7(6H)-dione (CAS 321998-79-2)
- (E)-1-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)(methyl)amino)-5-(3-(dimethylamino)acryloyl)-3-(4-fluorobenzyl)pyrimidine-2,4(1H,3H)-dione (CAS 338399-45-4)
- Methyl-2(3-(3-(2-(7-Chloro-2 quinolinyl)Ethenyl)Phenyl)-3-oxopropyl)benzoate (CAS 133791-17-0)
- N-[2-Chloro-6-(hydroxymethyl)phenyl]-2-[(triphenylmethyl)amino]-5-thiazolecarboxamide (CAS 910297-68-6)
- N-(3-Chloro-2-methylphenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 477331-36-5)
- N-(4-Chloro-2-methylphenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 476485-70-8)
- N-(5-Chloro-2-methylphenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 477330-79-3)
- Methyl 3-(2-(2-chloro-4-(trifluoromethyl)pyrimidine-5-carboxamido)-4-(trifluoromethyl)phenoxy)thiophene-2-carboxylate (CAS 648860-01-9)
Recommended Standards
- Amorolfine Impurity 61 (CAS CATO-C4X-154261)
- Fruquintinib Impurity 1 (CAS CATO-C4X-30371)
- CMC2026 Impurity 5 (CAS CATO-C4X-22665)
- 8-Bromo-7-chloro-6-iodo-2H-benzo[d][1,3]oxazine-2,4(1H)-dione (CAS 2667057-69-2)
- 3,3'-(1,1,3,3,5,5-Hexamethyltrisiloxane-1,5-diyl)bis(propan-1-amine) (CAS 89467-59-4)
- N-(4-Ethylbenzo[d]thiazol-2-yl)-2-phenoxyacetamide (CAS 892853-91-7)
- Z-Ala-OSu (CAS 3401-36-3)
- Benzyl (1-methylazepan-4-yl)carbamate (CAS 2289736-47-4)
- 1-{3-[1-(4,6-dimethylpyrimidin-2-yl)-1H-1,2,3-triazol-4-yl]phenyl}-3,3-dimethylazetidin-2-one (CAS 900019-20-7)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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