Pyrazole-1-carbonyl Chloride CAS 53355-55-8
| CAS No. | 53355-55-8 |
| Molecular Formula | C4H3ClN2O |
| Molecular Weight | 130.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pyrazole-1-carbonyl Chloride.
CATO supplies Pyrazole-1-carbonyl Chloride (CAS 53355-55-8), a certified reference material (molecular formula C4H3ClN2O, MW 130.53 g/mol) for analytical method development and quality control.
Structurally, Pyrazole-1-carbonyl Chloride (C4H3ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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 130.53 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Pyrazole-1-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.
Physical & Chemical Properties
| Molecular Formula | C4H3ClN2O |
| Molecular Weight | 130.53 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Pyrazole Standards
- 1H-Pyrazole-4-carbonyl chloride (CAS 103286-53-9)
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- (1H-Pyrazole-3,5-diyl)dimethanol (CAS 142179-08-6)
- 1h-Pyrazole-4-carbothioamide (CAS 1017781-31-5)
- 1H-Pyrazole-5-carbothioamide (CAS 1314902-85-6)
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- 1H-Pyrazole-4-carbohydrazide (CAS 87551-45-9)
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Recommended Standards
- 6-Chloro-2H-pyran-2-one (CAS 20357-65-7)
- 2-Chloro-5-hydroxypyrimidine (CAS 4983-28-2)
- 5-Chloropyrimidin-2-ol (CAS 214290-50-3)
- 2-Furoyl chloride (CAS 527-69-5)
- N-(4-fluorobenzyl)-2-((6-methyl-1H-benzo[d]imidazol-2-yl)thio)acetamide (CAS 866153-66-4)
- 1-N,3-N,4-trimethylbenzene-1,3-diamine dihydrochloride (CAS 1421601-26-4)
- N-(3-chlorophenyl)-2-nitrobenzamide (CAS 73544-84-0)
- Methyl 3-hydroxytridecanoate (CAS 150024-70-7)
- 2,6-Diamino-5-(6-(benzo[d]oxazol-2-yl)-6-oxohexyl)pyrimidin-4(1H)-one (CAS 647831-14-9)
- 2-(2,6-Dichlorobenzyl)-1-phenyl-1,2-dihydro-3H-pyrazolo[3,4-b]pyridin-3-one (CAS 320419-93-0)
- 2-(5-Bromopyridin-2-yl)acetamide (CAS 1335055-45-2)
- (3-Acetyl-4-fluorophenyl)boronic acid (CAS 850198-68-4)
- 6,11-Dihydrobenzo[b]acridine-12-carboxylic acid (CAS 351000-55-0)
- (Glu1)-Fibrinopeptide B (human) (CAS 103213-49-6)
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