4-Chloro-1-methylpyrazole CAS 35852-81-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 35852-81-4 |
| Molecular Formula | C4H5ClN2 |
| Molecular Weight | 116.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-1-methylpyrazole (CAS 35852-81-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H5ClN2. Molecular weight: 116.55 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H5ClN2 |
| Molecular Weight | 116.55 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.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 1092682-87-5 4-CHLORO-3-METHYL-1H-PYRAZOLE SC-32661 (CAS 1092682-87-5)
- 3-Chloro-4-methyl-1H-pyrazole (CAS 134589-56-3)
- 4-Chloro-3-methyl-1H-pyrazole (CAS 15878-08-7)
- 5-Chloro-3-methyl-1H-pyrazole (CAS 15953-45-4)
- 4-Chloro-2-methyl-1H-imidazole (CAS 16265-06-8)
- 2-Chloro-5-methyl-1h-imidazole (CAS 909086-61-9)
- 3-Chloro-1-methyl-1H-pyrazole (CAS 63425-54-7)
- 5-Chloro-1-methyl-1H-pyrazole (CAS 42110-76-9)
Recommended Standards
- 3-Chlorocyclopent-2-en-1-one (CAS 53102-14-0)
- 5-Chloro-1-methylimidazole (CAS 872-49-1)
- 3-(Chloromethyl)pyrazole Hydrochloride (CAS 69658-97-5)
- 2704AF 3-(2-Chloro-5-methylphenoxy)piperidine 902837-30-3 C12H16ClNO (CAS 902837-30-3)
- 6-(3-Bromophenoxy)pyridin-3-amine (CAS 954567-75-0)
- (5-Chloro-1-propyl-1H-benzo[d]imidazol-2-yl)methanamine (CAS 1179254-77-3)
- 1-Bromo-3-chloro-5,5-dimethylimidazolidine-2,4-dione (CAS 16079-88-2)
- 5-Cyclopropyl-1,3,4-oxadiazole-2-carboxylate lithium salt (CAS 1523571-22-3)
- Ethyl 3-(3-chlorophenyl)-5-methylisoxazole-4-carboxylate (CAS 495417-28-2)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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 13829788188 / jacky.chen@cato-chem.com