4-(Chloromethyl)-1-methyl-1<I>H</I>-pyrazole hydrochloride CAS 154312-86-4
| CAS No. | 154312-86-4 |
| Molecular Formula | C5H11ClN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(Chloromethyl)-1-methyl-1<I>H</I>-pyrazole hydrochloride is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-(Chloromethyl)-1-methyl-1<I>H</I>-pyrazole hydrochloride (CAS 154312-86-4), a certified reference material (molecular formula C5H11ClN2HCl, MW 171.06 g/mol) for analytical method development and quality control.
4-(Chloromethyl)-1-methyl-1<I>H</I>-pyrazole hydrochloride (C5H11ClN2HCl) contains chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 4-(Chloromethyl)-1-methyl-1<I>H</I>-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 | C5H11ClN2 HCl |
| Molecular Weight | 171.06 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloromethyl Standards
- 7-(Chloromethyl)-3-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-81-4)
- 7-(Chloromethyl)-2,3-dimethyl-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-82-5)
- 7-(Chloromethyl)-3-(4-chlorophenyl)-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-85-8)
- chloromethyl 2-ethoxy-2-methylpropanoate (CAS 1000296-74-1)
- 5-(chloromethyl)-N-(4-methylbenzyl)-1,3,4-thiadiazole-2-carboxamide (CAS 1000932-24-0)
- 5-(Chloromethyl)-7-ethoxy-2-(trifluoromethyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1000932-47-7)
- 5-(chloromethyl)-N-(4-fluorobenzyl)-1,3,4-thiadiazole-2-carboxamide (CAS 1000932-60-4)
- 2-(Chloromethyl)-5,6-diphenylfuro[2,3-d]pyrimidin-4-amine (CAS 1000933-67-4)
Recommended Standards
- 2-(4-Aminopiperidin-1-yl)-1-methyl-1H-imidazol-5(4H)-one (CAS 1707394-62-4)
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- 5,9-Dimethylspiro[3.5]non-5-en-1-one (CAS 1824571-95-0)
- 5-Aminopyrimidin-4-ol hydrochloride (CAS 106913-64-8)
- 3-amino-2-[(3-bromo-4-methylphenyl)methyl]propan-1-ol hydrochloride (CAS 1909324-89-5)
- (1R,2S,4S)-4-(((Benzyloxy)Carbonyl)Amino)Cyclohexane-1,2-Diyl Diacetate (CAS 2247380-96-5)
- 2-(3,4-Dichlorobenzoyl)oxazole (CAS 898784-26-4)
- 2-Methoxy-2-(oxolan-3-yl)ethane-1-sulfonyl chloride (CAS 1890032-75-3)
- Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570)
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