(1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazol-4-yl)methyl 3-chlorobenzoate CAS 318247-61-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 318247-61-9 |
| Molecular Formula | C25H21ClN2O2S |
| Molecular Weight | 448.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazol-4-yl)methyl 3-chlorobenzoate (CAS 318247-61-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C25H21ClN2O2S. Molecular weight: 448.96 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C25H21ClN2O2S |
| Molecular Weight | 448.96 g/mol |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- (1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazol-4-yl)methyl 2-chlorobenzoate (CAS 318247-47-1)
- (E)-[(2-{[(4-chlorophenyl)methyl]sulfanyl}quinolin-3-yl)methylidene][(4-methoxyphenyl)methoxy]amine (CAS 478065-90-6)
- Clobetasol Propionate Impurity 19 (CAS CATO-C4X-159219)
- 4-Methyl-3-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylic acid (CAS 1708013-53-9)
- 1-(3-Aminopropyl)-3-methylimidazolidine-2,4,5-trione hydrochloride (CAS 1251924-43-2)
- 4,5,6,7,8,9,10,11,12,13-Decahydrocyclododeca[d][1,3]thiazol-2-amine (CAS 31825-89-5)
- Alectinib impurity 20 (CAS 2287185-55-9)
- 4-Isopropoxy-2-methylaniline (CAS 676366-02-2)
- 2-(Azepan-1-yl)-1-phenylethan-1-ol oxalate (CAS 4641-54-7)
- Semaglutide impurity 44 (CAS CATO-C4X-222644)
Why CATO?
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