Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate CAS 321574-10-1
| CAS No. | 321574-10-1 |
| Molecular Formula | C18H14ClN3O4S |
| Molecular Weight | 403.84 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 Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate.
CATO supplies Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate (CAS 321574-10-1), a certified reference material (molecular formula C18H14ClN3O4S, MW 403.84 g/mol) for analytical method development and quality control.
Structurally, Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate (C18H14ClN3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 403.84 g/mol, it falls into the moderately-high-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 Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate 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 | C18H14ClN3O4S |
| Molecular Weight | 403.84 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 5-(4-Chlorobenzoyl)-2-(phenylamino)-4-(1H-pyrrol-1-yl)thiophene-3-carbonitrile (CAS 338401-16-4)
- (E)-({4-[4-(3-chlorobenzoyl)piperazin-1-yl]-3-nitrophenyl}methylidene)(methoxy)amine (CAS 383147-23-7)
- Ethyl 3-(4-chlorobenzoyl)-5-(pyridin-2-yl)indolizine-1-carboxylate (CAS 252986-68-8)
- 4-(4-Chlorobenzoyl)-1-(furan-2-ylmethyl)-3-hydroxy-5-(thiophen-2-yl)-1H-pyrrol-2(5H)-one (CAS 618074-50-3)
- 2-(4-Chlorobenzoyl)-3-{[(4-methoxyphenyl)sulfanyl]methyl}-1-benzofuran (CAS 338411-51-1)
- 4-(4-Chlorobenzoyl)-1-(furan-2-ylmethyl)-3-hydroxy-5-(3-hydroxyphenyl)-1H-pyrrol-2(5H)-one (CAS 618074-52-5)
- 3-[1-(3-Chlorobenzoyl)piperidin-4-yl]-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775357-62-4)
- 3-[1-(3-Chlorobenzoyl)piperidin-4-yl]-4-[(4-methylphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775410-14-4)
Recommended Standards
- 4-Chloro-N-(4-(2-(furan-2-ylmethylene)hydrazinecarbonyl)phenyl)benzenesulfonamide (CAS 477733-05-4)
- Methyl 4-(2-((5-(2-chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)acetamido)benzoate (CAS 332161-01-0)
- 4-Chloro-N-(2-(2-(furan-2-ylmethylene)hydrazinecarbonyl)phenyl)benzenesulfonamide (CAS 477733-10-1)
- 6-chloro-2-methyl-3,4,4a,8a-tetrahydro-2H-thiochromen-4-yl (3-(trifluoromethyl)phenyl)carbamate (CAS 1005106-79-5)
- Tert-butyln-methyl-N-{[(3r)-pyrrolidin-3-yl]methyl}carbamate (CAS 1064051-97-3)
- 2-Chloro-4-methoxy-6-(trifluoromethyl)pyridine (CAS 1211539-69-3)
- 3,3-Dimethyl-4-(propan-2-ylidene)oxetan-2-one (CAS 3173-79-3)
- 3,4-dichloro benzoyl nitrile (CAS 35022-44-7)
- 2-(3-chloropropyl)-5-(trifluoromethyl)-1,3,4-oxadiazole (CAS 1423034-48-3)
- 4-Bromo-(1-oxyl-2,2,5,5-tetramethyl-∆3-pyrroline-3-methyl) Methanethiosulfonate (CAS 215956-55-1)
- 1-(3-Bromo-4-fluorobenzyl)pyrrolidin-3-ol (CAS 1275341-15-5)
- 3-[(4-methoxyphenoxy)methyl]aniline (CAS 1016523-59-3)
- Bucrilate (CAS 1069-55-2)
- Liraglutide Impurity 17 TFA Salt (CAS CATO-C4X-199217)
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