2-(4-Chloro-1h-pyrazol-1-yl)ethan-1-ol CAS 1003992-83-3
| CAS No. | 1003992-83-3 |
| Molecular Formula | C5H7ClN2O |
| Molecular Weight | 146.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-(4-Chloro-1h-pyrazol-1-yl)ethan-1-ol is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 146.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 2-(4-Chloro-1h-pyrazol-1-yl)ethan-1-ol (CAS 1003992-83-3), a certified reference material (molecular formula C5H7ClN2O, MW 146.57 g/mol) for analytical method development and quality control.
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), 2-(4-Chloro-1h-pyrazol-1-yl)ethan-1-ol 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 | C5H7ClN2O |
| Molecular Weight | 146.57 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- (4-Chloro-1-methyl-1h-pyrazol-3-yl)methanol (CAS 1017783-29-7)
- 5-Chloro-3-isopropyl-1,2,4-oxadiazole (CAS 1188446-92-5)
- 3-Chloro-5-isopropyl-1,2,4-oxadiazole (CAS 1243250-26-1)
- (2-Chloro-1-methyl-1H-imidazol-5-yl)methanol (CAS 1256562-03-4)
- (2-Chloro-4-methyloxazol-5-yl)methanamine (CAS 1260672-34-1)
- (4-Chloro-1-methyl-1h-pyrazol-5-yl)methanol (CAS 1310379-29-3)
- 2-chloro-5-isopropyl-1,3,4-oxadiazole (CAS 1368687-66-4)
- (5-Chloro-1-methyl-1H-pyrazol-4-yl)methanol (CAS 1378491-01-0)
Recommended Standards
- Voriconazole Impurity 24 (CAS 898044-55-8)
- 5-Chloro-4-fluoro-2-methylpyrimidine (CAS 99429-15-9)
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- 4-Chloro-5-fluoro-2-methylpyrimidine (CAS 898044-50-3)
- N-[(2-Methylphenyl)methyl]piperidine-2-carboxamide (CAS 189069-85-0)
- 3-(Methylthio)-4-phenyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 383145-82-2)
- N-allyl-2-(2-phenoxyacetyl)hydrazine-1-carbothioamide (CAS 18233-36-8)
- Tert-butyl 3-amino-3-(4-chlorobenzyl)piperidine-1-carboxylate (CAS 2426657-81-8)
- Ivabradine impurity 71 (CAS CATO-C4X-111971)
- 3-(4-Cyclohexylphenyl)-5-methylisoxazole-4-carbonyl chloride (CAS 55278-67-6)
- 1-Cycloheptyl-2-(1,3-dioxolan-2-yl)-ethanone (CAS 1263365-85-0)
- Methyl 3-bromo-5-formyl-2-hydroxybenzoate (CAS 861514-69-4)
- Methyl 1-Amino-1H-pyrrole-2-carboxylate (CAS 122181-85-5)
- Cholecystokinin Octapeptide (desulfated) (H-2070.0005) (CAS 198483-36-2)
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