4-Phenyl-1H-pyrazole hydrochloride CAS 1093641-66-7
| CAS No. | 1093641-66-7 |
| Molecular Formula | C9H12N2 |
| Molecular Weight | N/A |
| 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 4-Phenyl-1H-pyrazole hydrochloride.
4-Phenyl-1H-pyrazole hydrochloride (CAS 1093641-66-7), molecular formula C9H12N2HCl and molecular weight 184.67 g/mol, is a CATO reference standard with documented purity and traceability.
4-Phenyl-1H-pyrazole hydrochloride (C9H12N2HCl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 4-Phenyl-1H-pyrazole hydrochloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H12N2 HCl |
| Molecular Weight | 184.67 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- n-(3-Hydroxypropyl)-5-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (CAS 1156804-31-7)
- L-Leucine-d3 (CAS 87828-86-2)
- 1,4,5,6,7,8-Hexahydrocyclohepta[c]pyrazole-3-carboxylic acid (CAS 856256-63-8)
- 1-(Oxan-4-yl)-1h-pyrazol-3-amine (CAS 1339391-39-7)
- Dimethyl L-isothiocyanatosuccinate (CAS 21055-49-2)
- 3-Cyclopentyl-2-fluoropropanoic acid (CAS 1506049-36-0)
- 1,1'-(Butane-1,4-diyl)bis(1H-pyrrole-2,5-dione) (CAS 28537-70-4)
- N-(2,2-Difluoroethyl)tetrahydro-3-thiophenamine 1,1-dioxide (CAS 915402-22-1)
- 2-(3,3-Difluorocyclohexyl)-2,2-difluoroacetic acid (CAS 1784863-22-4)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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