1-(3-Chlorophenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)urea CAS 325850-26-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 325850-26-8 |
| Molecular Formula | C18H17ClN4O2 |
| Molecular Weight | 356.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-Chlorophenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)urea (CAS 325850-26-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H17ClN4O2. Molecular weight: 356.81 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H17ClN4O2 |
| Molecular Weight | 356.81 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 | 4 |
Related Chlorophenyl Standards
- (4Z)-1-(4-Chlorophenyl)-3-ethoxy-4-({[(pyridin-3-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-19-2)
- 1-(4-Chlorophenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)urea (CAS 59440-79-8)
- 2-((4-(2-(2-Chlorophenyl)acetamido)but-2-yn-1-yl)oxy)benzamide (CAS 1421442-94-5)
- (E)-3-(5-(4-chlorophenyl)furan-2-yl)-2-cyano-N-((tetrahydrofuran-2-yl)methyl)acrylamide (CAS 444764-47-0)
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Recommended Standards
- (R)-7-chloro-6-methoxy-4-((1-(pyridin-2-yl)ethyl)amino)quinoline-3-carboxamide (CAS 2444608-43-7)
- 2-((5-(5-Chlorothiophen-2-yl)-1,3,4-oxadiazol-2-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide (CAS 850937-46-1)
- 7-Chloro-5-methyl-2-(2-(1-methyl-1H-benzo[d]imidazol-2-yl)ethyl)-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-1,6(5H)-dione (CAS 1628618-37-0)
- (3R)-3,4,4-trifluoropiperidine hydrochloride (CAS 2306253-87-0)
- 1-(Boc-amino-acetyl)-piperidine-4-carboxylic acid, 98% (CAS 345955-48-8)
- Tenoxicam EP Impurity D (CAS 52781-01-8)
- N-ethyl-2-(3-(hydroxymethyl)pyrrolidin-1-yl)acetamide (CAS 1250824-18-0)
- 2-(2-Ethyl-1H-benzo[d]imidazol-1-yl)butanoic acid hydrochloride (CAS 1609396-01-1)
- 3-{[(2-ethoxyethyl)amino]methyl}phenol (CAS 1154558-79-8)
- Semaglutide Impurity 6 (CAS 62-57-7)
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