1-Benzyl-4-(chloromethyl)-1H-pyrazole hydrochloride CAS 861135-54-8
| CAS No. | 861135-54-8 |
| Molecular Formula | C11H11ClN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Benzyl-4-(chloromethyl)-1H-pyrazole hydrochloride is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Benzyl-4-(chloromethyl)-1H-pyrazole hydrochloride (CAS 861135-54-8), molecular formula C11H11ClN2HCl and molecular weight 243.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 1-Benzyl-4-(chloromethyl)-1H-pyrazole hydrochloride is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 243.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 1-Benzyl-4-(chloromethyl)-1H-pyrazole hydrochloride 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 | C11H11ClN2 HCl |
| Molecular Weight | 243.13 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Benzyl 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
- 5-{[2-(prop-2-en-1-yl)phenoxy]methyl}furan-2-carboxylic acid (CAS 832737-74-3)
- 1-(3,5-Dichlorophenyl)biguanide hydrochloride (CAS 175205-04-6)
- 1-(6-Amino-5,6,7,8-tetrahydroquinazolin-2-yl)urea (CAS 929973-35-3)
- Ethyl 4-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzoate (CAS 866154-36-1)
- Orforglipron Impurity 11 (CAS 2212022-56-3)
- 5-Bromo-2-methoxypyridine-d3 (CAS 1185319-63-4)
- 5-(1-Hydroxycyclopentyl)isoxazole-3-carboxamide (CAS 924861-95-0)
- [(4-Phenyl-1,3-thiazol-5-yl)methyl]amine dihydrochloride (CAS 920438-42-2)
- Fenobucarb-d3 (CAS 2662756-72-9)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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