1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one CAS 119457-13-5
| CAS No. | 119457-13-5 |
| Molecular Formula | C27H18ClN5O3 |
| Molecular Weight | 495.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one (C27H18ClN5O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 495.92 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one (CAS 119457-13-5) is a high-purity analytical reference standard with the molecular formula C27H18ClN5O3 and a molecular weight of 495.92 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-hydroxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C27H18ClN5O3 |
| Molecular Weight | 495.92 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
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- 4-Chloro-N-[5-methyl-2-[7H-pyrrolo[2,3-d]pyrimidine-4-carbonyl]-3-pyridyl]-3-(trifluoromethyl)benzenesulfonamide (CAS 1100318-47-5)
- N-(3-Chloro-4-methoxyphenyl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477329-99-0)
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Recommended Standards
- ((2R,3R,4S,5R)-3-(Benzoyloxy)-5-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-4-fluorotetrahydrofuran-2-yl)methyl benzoate (CAS 169516-55-6)
- N-[(4-Chlorophenyl)methyl]-4-{3-[3-(trifluoromethyl)phenyl]-2H,4H,5H,6H-cyclopenta[c]pyrazol-2-yl}benzamide (CAS 866018-76-0)
- Cloxacillin Impurity 38 (CAS CATO-C4X-159738)
- 1-Benzhydryl-4-((2,4,5-trichlorophenyl)sulfonyl)piperazine (CAS 325813-77-2)
- 4,4’-Diamino-2,2’-dibromobiphenyl (CAS 84530-60-9)
- 4-(Aminomethyl)-5-(difluoromethyl)-3-methylpyridin-2-ol (CAS 1805254-83-4)
- 2-Chloro-5-formyl-4-((2-hydroxyphenyl)amino)nicotinonitrile (CAS 532412-96-7)
- 3-((4-Acetylphenyl)carbamoyl)bicyclo[2.2.1]Hept-5-ene-2-carboxylic acid (CAS 353514-61-1)
- 2,3-Dibromobenzyl alcohol (CAS 1214331-37-9)
- 5-Cyclopropoxy-2-ethyl-4-methoxypyridine (CAS 1243462-99-8)
- (1-Methyl-3-nitro-1H-pyrazol-5-yl)methanol (CAS 1227210-46-9)
- N-{5-[4-(Diethylamino)benzoyl]-1,3-thiazol-2-yl}-N,N-dimethyliminoformamide (CAS 861211-30-5)
- (alphaR)-N-[3-[3-(Difluoromethyl)phenyl]propyl]-alpha-methyl-1-naphthalenemethanamine (CAS 1025064-41-8)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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