(4-Chloro-1-methyl-1h-pyrazol-5-yl)methanol CAS 1310379-29-3
| CAS No. | 1310379-29-3 |
| Molecular Formula | C5H7ClN2O |
| Molecular Weight | 146.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (4-Chloro-1-methyl-1h-pyrazol-5-yl)methanol 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.
(4-Chloro-1-methyl-1h-pyrazol-5-yl)methanol (CAS 1310379-29-3) is a high-purity analytical reference standard with the molecular formula C5H7ClN2O and a molecular weight of 146.57 g/mol.
Structurally, (4-Chloro-1-methyl-1h-pyrazol-5-yl)methanol (C5H7ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 146.57 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-(4-Chloro-1h-pyrazol-1-yl)ethan-1-ol (CAS 1003992-83-3)
- (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)
- 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
- Furfural Impurity 6 (CAS 1265365-41-0)
- (S)-6-(Chloromethyl)-5,6-dihydro-2H-pyran-2-one (CAS 135999-61-0)
- 2-(3-chloropropyl)-1,3,4-oxadiaZole (CAS 1250961-59-1)
- 3-chlorobicyclo[1.1.1]pentane-1-carboxylic acid (CAS 156329-73-6)
- 3-(3-Aminophenyl)-1-phenylpropan-1-ol (CAS 87082-42-6)
- 1,5-Dichloroisoquinoline (CAS 70810-23-0)
- Sodium ((2R,3S,4R,5R)-3,4-dihydroxy-5-(6-hydroxy-9H-purin-9-yl)tetrahydrofuran-2-yl)methyl hydrogentriphosphate hydrate (CAS 314041-00-4)
- (6-aminopyridin-3-yl)(2-methoxyphenyl)methanone (CAS 1189327-30-7)
- (3aS,4S,6aR)-N-[(14E,16R,17S)-17-Amino-16,18-dihydroxy-14-octadecen-1-yl]hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanamide 752987-57-8 erythro-|O-Amino Sphingosine Biotinamide (CAS 752987-57-8)
- N-(2-amino-4-methylphenyl)pentanamide (CAS 133085-62-8)
- 2-Chloro-N-(4,6-dimethoxypyrimidin-2-yl)acetamide (CAS 181270-85-9)
- N-[2-(4-Chloro-3,5-dimethylphenoxy)ethyl]-3-(2-phenoxyethoxy)aniline (CAS 1040685-95-7)
- ((2R,3R,4S,5R,6S)-6-((2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-3-yl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)methyl 3,4,5-trihydroxybenzoate (CAS 53171-28-1)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com