3-(Chloromethyl)-1-methyl-5-phenyl-1H-pyrazole CAS 869901-13-3
| CAS No. | 869901-13-3 |
| Molecular Formula | C11H11ClN2 |
| Molecular Weight | 206.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(Chloromethyl)-1-methyl-5-phenyl-1H-pyrazole (CAS 869901-13-3), molecular formula C11H11ClN2 and molecular weight 206.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H11ClN2, 3-(Chloromethyl)-1-methyl-5-phenyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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.) | 1987 |
| 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
- 3-(Chloromethyl)-1-methoxynaphthalene (CAS 303043-20-1)
- 3-[4-(chloromethyl)phenyl]-1-methyl-1h-pyrazole (CAS 916766-83-1)
- 3-(4-Chlorophenyl)cyclohex-2-en-1-one (CAS 91398-51-5)
- 3-Tert-butyl-1-(2-chloropropanoyl)urea (CAS 879318-96-4)
- (+)-N-Methylactinodaphnine (CAS 5890-28-8)
- 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-amine (CAS 1378804-79-5)
- 5-(Ethoxycarbonyl)-4-(trifluoromethyl)-1H-imidazole 55942-41-1 ethyl 5-(trifluoromethyl)-3H-imidazole-4-carboxylate (CAS 55942-41-1)
- 5-Bromo-N-(2-methoxyphenyl)nicotinamide (CAS 313549-04-1)
- 2-Bromo-N-tritylacetamide (CAS 188112-22-3)
- 1,5-Bis-(5-methyl-1,3-dioxan-5-yl)-2,4-dioxapentane (CAS 115430-86-9)
- 2-Ethyl-2,3-dihydro-1H-benzo[f]isoindol-1-one (CAS 371165-99-0)
- Sodium phenyl acetate (CAS 114-70-5)
- 2,2',2'',2'''-(((Ethane-1,2-diylbis(oxy))bis(4-bromo-2,1-phenylene))bis(azanetriyl))tetraacetic acid (CAS 111248-72-7)
- Liraglutide Impurity 15 TFA Salt (CAS CATO-C4X-199215)
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