5-(4-Hydroxy-3-methoxybenzylidene)-2-(4-(4-nitrophenyl)piperazin-1-yl)thiazol-4(5H)-one CAS 844447-18-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 844447-18-3 |
| Molecular Formula | C21H20N4O5S |
| Molecular Weight | 440.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-Hydroxy-3-methoxybenzylidene)-2-(4-(4-nitrophenyl)piperazin-1-yl)thiazol-4(5H)-one (CAS 844447-18-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H20N4O5S. Molecular weight: 440.47 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H20N4O5S |
| Molecular Weight | 440.47 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-((4-(N-(4-ethoxyphenyl)sulfamoyl)phenyl)carbamoyl)benzoic acid (CAS 433315-09-4)
- Methyl 5-(3,4-dimethoxyphenyl)-2-(furan-2-ylmethylene)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 331454-82-1)
- 3-[1-(3-Fluoro-4-methoxybenzoyl)piperidin-4-yl]-4-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775559-75-5)
- (2,4-dimethylphenyl)(3-methanesulfonylphenyl)methanamine hydrochloride (CAS 1354952-21-8)
- 1,3-diethyl 2-(4-fluoro-5-methyl-2-nitrophenyl)propanedioate (CAS 1251950-59-0)
- 4-(3,4-Dimethoxyphenyl)butanoyl chloride (CAS 348143-75-9)
- Ethyl 5-(4-chlorophenyl)-1H-pyrrole-2-carboxylate (CAS 65117-64-8)
- 2-(Chloromethyl)-6-(difluoromethyl)-4-iodo-3-methoxypyridine (CAS 1805258-09-6)
- Faropenem Impurity 52 (CAS CATO-C4X-128952)
- Hepcidin/LEAP-1 (Human); Liver-Expressed Antimicrobial Peptide (CAS 342790-21-0)
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