3-Methyl-1-phenyl-1H-pyrazole-5-carbonyl chloride CAS 861585-76-4
| CAS No. | 861585-76-4 |
| Molecular Formula | C11H9ClN2O |
| Molecular Weight | 220.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Methyl-1-phenyl-1H-pyrazole-5-carbonyl chloride.
3-Methyl-1-phenyl-1H-pyrazole-5-carbonyl chloride (CAS 861585-76-4), molecular formula C11H9ClN2O and molecular weight 220.65 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9ClN2O, 3-Methyl-1-phenyl-1H-pyrazole-5-carbonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 220.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 3-Methyl-1-phenyl-1H-pyrazole-5-carbonyl chloride 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 | C11H9ClN2O |
| Molecular Weight | 220.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-Methyl-1-phenyl-1H-pyrazole-4-carbonyl chloride (CAS 957294-52-9)
- 4-(2-Chloro-pyridin-4-yloxy)-phenylamine (CAS 630125-70-1)
- 3-Methoxy-2-naphthoyl chloride (CAS 58778-69-1)
- 4-(4-Chlorophenoxy)pyridin-3-amine (CAS 849743-71-1)
- tert-Butyl 3-(1-methyl-1H-indol-2-yl)piperidine-1-carboxylate (CAS 1447958-93-1)
- [6-(3-Methyl-1-piperidinyl)-3-pyridinyl]-methanamine (CAS 926196-84-1)
- 1-(4-Amino-6-chloro-1,3,5-triazin-2-yl)pyrrolidin-3-ol (CAS 1220030-89-6)
- 3,3-Difluoro-2,2-dimethylpropan-1-amine hydrochloride (CAS 1949816-36-7)
- 1-((4-Bromophenyl)sulfonyl)piperidine-2-carboxylic acid (CAS 474625-93-9)
- N-(4-Methoxy-2-nitrophenyl)benzenesulfonamide (CAS 5464-08-4)
- N,N-Dipropylacetamide (CAS 1116-24-1)
- N-((2S,3S,4S,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide (CAS 93060-86-7)
- Captopril EP Impurity D (CAS 56970-78-6)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
Why CATO?
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