Methyl 3-(3-methyl-1-(phenylcarbamoyl)-1H-pyrazole-4-carboxamido)thiophene-2-carboxylate CAS 321574-09-8
| CAS No. | 321574-09-8 |
| Molecular Formula | C18H16N4O4S |
| Molecular Weight | 384.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 3-(3-methyl-1-(phenylcarbamoyl)-1H-pyrazole-4-carboxamido)thiophene-2-carboxylate (CAS 321574-09-8), a certified reference material (molecular formula C18H16N4O4S, MW 384.41 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Methyl 3-(3-methyl-1-(phenylcarbamoyl)-1H-pyrazole-4-carboxamido)thiophene-2-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C18H16N4O4S |
| Molecular Weight | 384.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Recommended Standards
- 5,6-Dihydrobenzo[h]cinnolin-3-ol (CAS 55267-52-2)
- Morpholino(4-((3-nitrophenyl)sulfonyl)piperazin-1-yl)methanone (CAS 694467-66-8)
- 3-[3-(4-Methoxyanilino)acryloyl]-5-methyl-N-(1,3-thiazol-2-yl)-4-isoxazolecarboxamide (CAS 338794-76-6)
- N'-((3-(4-Fluorophenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)benzohydrazide (CAS 302938-53-0)
- (1-cyclopropylethyl)(2-methoxyethyl)amine (CAS 1019551-02-0)
- Trimethyl(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl)silane (CAS 942070-40-8)
- N-[(E)-(5-Chloro-1,3-dimethyl-1H-pyrazol-4-yl)methylidene]-N-[(4-nitrobenzoyl)oxy]amine (CAS 303987-98-6)
- 6-Bromo-8-nitro-3,4-dihydroquinolin-2(1H)-one (CAS 858213-76-0)
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- 2-isopropylsulfonyl-1,2,4-triazol-3-amine (CAS 2794144-11-7)
- 1-Isopentyl-2-(thiophen-2-yl)-1H-benzo[d]imidazole (CAS 615281-41-9)
- 4'-Methoxy-[1,1'-biphenyl]-3-amine hydrochloride (CAS 1170850-81-3)
- 5-Chloro-3-methyl-2-propoxypyridine (CAS 1881292-57-4)
- SAMS Peptide (CAS 125911-68-4)
Why CATO?
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