5-(5-Chlorothiophen-2-yl)-N'-(3-ethoxy-4-hydroxybenzylidene)-1H-pyrazole-3-carbohydrazide CAS 303104-90-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303104-90-7 |
| Molecular Formula | C17H15ClN4O3S |
| Molecular Weight | 390.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(5-Chlorothiophen-2-yl)-N'-(3-ethoxy-4-hydroxybenzylidene)-1H-pyrazole-3-carbohydrazide (CAS 303104-90-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C17H15ClN4O3S. Molecular weight: 390.84 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C17H15ClN4O3S |
| Molecular Weight | 390.84 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Chlorothiophen Standards
- N-(4-(5-Chlorothiophen-2-yl)thiazol-2-yl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide (CAS 1012480-95-3)
- N-(4-(5-Chlorothiophen-2-yl)thiazol-2-yl)-1-(methylsulfonyl)pyrrolidine-2-carboxamide (CAS 1219145-14-8)
- N-(4-(3-chlorothiophen-2-yl)thiazol-2-yl)-3-(trifluoromethyl)benzamide (CAS 478260-67-2)
- (5-Chlorothiophen-2-yl)(3-((3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)methanone (CAS 1788681-94-6)
- 5-(3-Chlorothiophen-2-yl)-2-[4-(4-fluorophenyl)piperazin-1-yl]-1H-pyrrole-3-carbonitrile (CAS 477845-27-5)
- 5-(5-Chlorothiophen-2-yl)-N'-(3-(2-methoxyphenyl)allylidene)-1H-pyrazole-3-carbohydrazide (CAS 308095-81-0)
- 5-(((5-Chlorothiophen-2-yl)sulfonyl)methyl)-3-(4-ethoxyphenyl)-1,2,4-oxadiazole (CAS 1105206-50-5)
- 5-(1-((5-Chlorothiophen-2-yl)sulfonyl)azetidin-3-yl)-3-(pyrazin-2-yl)-1,2,4-oxadiazole (CAS 1324205-62-0)
Recommended Standards
- 2-[4-(3-Chlorophenyl)piperazin-1-yl]-4-(4-fluorophenyl)-4-oxobutanoic acid (CAS 301194-46-7)
- Etoricoxib Impurity 31 (CAS 2724840-93-9)
- 2,3-Dibromo-5-iodo-4,6-dimethylpyridine (CAS 1823961-40-5)
- tert-Butyl 4-((2-chlorothiazol-5-yl)methyl)-2-methylpiperazine-1-carboxylate (CAS 1261231-87-1)
- 1-ethyl-1H-indol-5-amine hydrochloride (CAS 1223638-10-5)
- 2-Methoxy-4-methyl--5-nitrobenzamide (CAS 1352398-21-0)
- N-{4-[(2-hydroxy-1-phenylethyl)sulfamoyl]phenyl}acetamide (CAS 338750-55-3)
- N-(pyridin-2-yl)prop-2-enamide (CAS 40000-69-9)
- 4-Chloro-6-methoxynicotinaldehyde (CAS 1060806-50-9)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com