4-Chloro-1,5-dimethyl-1H-pyrazole-3-carbonyl chloride CAS 189224-46-2
| CAS No. | 189224-46-2 |
| Molecular Formula | C6H6Cl2N2O |
| Molecular Weight | 193.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Chloro-1,5-dimethyl-1H-pyrazole-3-carbonyl chloride 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.
4-Chloro-1,5-dimethyl-1H-pyrazole-3-carbonyl chloride (CAS 189224-46-2), molecular formula C6H6Cl2N2O and molecular weight 193.03 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-1,5-dimethyl-1H-pyrazole-3-carbonyl chloride (C6H6Cl2N2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 193.03 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H6Cl2N2O |
| Molecular Weight | 193.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-(4-Chloro-3-methyl-1H-pyrazol-1-yl)acetyl chloride (CAS 1002534-97-5)
- 4-Chloro-2-(chloromethyl)-6-methoxypyrimidine (CAS 1056897-78-9)
- 4-chloro-6-(1-chloroethyl)-1,3,5-triazin-2-amine (CAS 1139245-20-7)
- 4-Chloro-1-ethyl-1H-pyrazole-5-carbonyl chloride (CAS 1171932-05-0)
- 4-Chloro-1-ethyl-1H-pyrazole-3-carbonyl chloride (CAS 1172515-44-4)
- 2-(4-Chloro-1H-pyrazol-1-yl)propanoyl chloride (CAS 1217862-81-1)
- 4-Chloro-1,3-dimethyl-1H-pyrazole-5-carbonyl chloride (CAS 128141-47-9)
- 4-Chloro-3,5-dimethyl-1H-pyrazole-1-carbonyl chloride (CAS 67514-73-2)
Recommended Standards
- 2,4-Dichloro-5-methoxyphenol (CAS 18113-13-8)
- 4,6-Dichloro-2-(methoxymethyl)pyrimidine (CAS 1903-92-0)
- 4,5-Dichloro-6-ethoxypyrimidine (CAS 1804513-48-1)
- (2-Methylbenzo[d]thiazol-5-yl)boronic acid (CAS 590417-67-7)
- 2-Methyl-[1,2,4]triazolo[1,5-a]pyrazin-8-amine (CAS 52546-65-3)
- 2,4-Difluorophenyl propionate (CAS 924868-79-1)
- 3-Iodo-1-methylpiperidine (CAS 1353944-56-5)
- 3-(4-Benzyloxyphenyl)picolinic acid (CAS 1261892-48-1)
- 3-[(5-Chloro-2-hydroxyphenyl)methylidene]-6-(trifluoromethyl)-2,3-dihydro-1H-indol-2-one (CAS 860651-10-1)
- 6-(Pyrrolidin-1-yl)pyridin-3-amine hydrochloride (CAS 1431963-46-0)
- 1-(2-Bromobenzoyl)-1H-indole-3-carbaldehyde (CAS 147055-72-9)
- 5-Chloro-4-fluoro-2-nitrobenzaldehyde (CAS 213382-47-9)
- Methyl (E)-3-(1H-indol-4-yl)acrylate (CAS 76084-20-3)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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 18665070610 / Nicole.chen@cato-chem.com