(4Z)-4-{[(5-chloro-2-hydroxyphenyl)amino]methylidene}-1-(3,4-dimethylphenyl)-3-methyl-4,5-dihydro-1h-pyrazol-5-one CAS 310456-09-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 310456-09-8 |
| Molecular Formula | C19H18ClN3O2 |
| Molecular Weight | 355.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4Z)-4-{[(5-chloro-2-hydroxyphenyl)amino]methylidene}-1-(3,4-dimethylphenyl)-3-methyl-4,5-dihydro-1h-pyrazol-5-one (CAS 310456-09-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H18ClN3O2. Molecular weight: 355.82 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H18ClN3O2 |
| Molecular Weight | 355.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Z Standards
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- 1-(2-Chloro-6-(1H-1,2,4-triazol-1-yl)benzyl)-3-(2,6-dimethylphenyl)urea (CAS 866042-59-3)
- 4-((5-Chloro-2-methoxyphenyl)amino)-2-(4-methylpiperazin-1-yl)-4-oxobutanoic acid (CAS 900011-79-2)
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Recommended Standards
- (4Z)-1-(4-Chlorophenyl)-3-ethoxy-4-{[(4-methylphenyl)amino]methylidene}-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-07-8)
- 1-(4-Chlorobenzyl)-6-cyclopropyl-3-methyl-1h-pyrazolo[3,4-b]pyridine-4-carbohydrazide (CAS 938006-75-8)
- 3-((4-(2-((3-Chlorophenyl)amino)pyrimidin-4-yl)pyridin-2-yl)amino)propan-1-ol (CAS 164658-13-3)
- Isopentyl 2-(3-oxopiperazin-2-yl)acetate (CAS 1032338-42-3)
- 4-amino-3,5-dibromobenzamide (CAS 874774-34-2)
- 4-Amino-3,4-dihydroquinolin-2(1H)-one (CAS 858783-30-9)
- 2-chloro-N-(2,3-dihydro-1H-inden-1-yl)acetamide (CAS 6514-50-7)
- rel-tert-Butyl (1R,4R)-2,5-diazabicyclo[2.2.2]octane-2-carboxylate (CAS 1187931-66-3)
- 2-hydroxyethyl ((benzyloxy)carbonyl)-L-tryptophanate (CAS 642478-72-6)
- Semaglutide Impurity 137 (x TFA Salt) (CAS CATO-C4X-2226137)
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