4-(Chloromethyl)-5-methyl-1-phenyl-1H-pyrazole CAS 728913-75-5
| CAS No. | 728913-75-5 |
| Molecular Formula | C11H11ClN2 |
| Molecular Weight | 206.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 206.67 g/mol gives 4-(Chloromethyl)-5-methyl-1-phenyl-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(Chloromethyl)-5-methyl-1-phenyl-1H-pyrazole (CAS 728913-75-5) is a high-purity analytical reference standard with the molecular formula C11H11ClN2 and a molecular weight of 206.67 g/mol.
4-(Chloromethyl)-5-methyl-1-phenyl-1H-pyrazole (C11H11ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
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 4-(Chloromethyl)-5-methyl-1-phenyl-1H-pyrazole 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 |
| Molecular Weight | 206.67 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloromethyl Standards
- 3-(Chloromethyl)-1-(4-methylphenyl)-1h-pyrazole (CAS 1482710-08-6)
- [5-(chloromethyl)-1-methyl-pyrazol-3-yl]methyl acetate (CAS 2489244-22-4)
- 1-(Chloromethyl)-2-methoxynaphthalene (CAS 67367-39-9)
- 1-(Chloromethyl)-4-methoxynaphthalene (CAS 72771-24-5)
- 1-Benzyl-3-(chloromethyl)-1H-pyrazole (CAS 211946-09-7)
- 1-benzyl-4-(chloromethyl)-1H-pyrazole (CAS 861204-95-7)
- 1-Benzyl-5-(chloromethyl)-1H-imidazole (CAS 784182-26-9)
- 2-(Chloromethyl)-6-methoxynaphthalene (CAS 41790-33-4)
Recommended Standards
- 4-(Chloromethyl)-3-methyl-1-phenyl-1h-pyrazole (CAS 99853-52-8)
- 4-Chloro-2-isopropylquinazoline (CAS 38154-42-6)
- 4-(4-chlorophenyl)cyclohex-3-en-1-one (CAS 36716-75-3)
- 4-Chloro-2-propylquinazoline (CAS 38154-41-5)
- 5-Fluoro-2-(3-fluorophenyl)pyridine 1-oxide (CAS 1700602-74-9)
- Tert-butyl 4-amino-2-oxopiperidine-1-carboxylate (CAS 1820735-52-1)
- 2-((3-Methylbenzyl)thio)acetaldehyde (CAS 1344303-29-2)
- 6-Chloro-4-(4-chlorophenoxy)-1H-pyrazolo[3,4-d]pyrimidine (CAS 6288-98-8)
- 4-(Trifluoromethyl)nicotinoyl chloride (CAS 104326-73-0)
- Ethyl 3-oxononanoate (CAS 6622-36-2)
- 1-(4-(3-Methoxypropyl)-4H-1,2,4-triazol-3-yl)ethanamine dihydrochloride (CAS 1609407-91-1)
- Piritrexim (CAS 72732-56-0)
- 2,3-Dibromo-4-butoxy-5-ethoxybenzaldehyde (CAS 832674-62-1)
- Lixisenatide (CAS 320367-13-3（free base）)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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