4-Benzoyl-3-hydroxy-5-(4-methoxyphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one CAS 439947-30-5
| CAS No. | 439947-30-5 |
| Molecular Formula | C21H17N3O4S |
| Molecular Weight | 407.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Benzoyl-3-hydroxy-5-(4-methoxyphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one 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.
4-Benzoyl-3-hydroxy-5-(4-methoxyphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 439947-30-5) is a high-purity analytical reference standard with the molecular formula C21H17N3O4S and a molecular weight of 407.44 g/mol.
Based on its molecular formula C21H17N3O4S, 4-Benzoyl-3-hydroxy-5-(4-methoxyphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 407.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C21H17N3O4S |
| Molecular Weight | 407.44 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Benzoyl Standards
- 4-Benzoyl-N'-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrrole-2-carbohydrazide (CAS 338403-56-8)
- 4-Benzoyl-1-[(2-chloro-6-fluorophenyl)methyl]-3-methyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 317822-18-7)
- N-(7-benzoyl-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4-methylbenzenesulfonamide (CAS 886493-75-0)
- Ethyl 2-benzoyl-3-(isoquinolin-1-yl)-3-phenylpropanoate (CAS 34008-40-7)
- 4-Benzoyl-5-(4-chlorophenyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1,5-dihydro-2h-pyrrol-2-one (CAS 309923-37-3)
- 2,2'-((2-((2-Benzoyl-4-chlorophenyl)amino)-2-oxoethyl)azanediyl)diacetic acid (CAS 87071-16-7)
- 1-[(4-Benzoyl-1-methyl-1H-pyrrol-2-yl)methyl]-4-(4-nitrophenyl)piperazine (CAS 866149-61-3)
- 4-Benzoyl-3-hydroxy-5-(5-methylfuran-2-yl)-1-(3-morpholinopropyl)-1H-pyrrol-2(5H)-one (CAS 380569-20-0)
Recommended Standards
- 3-Hydroxy-4-(4-methoxybenzoyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-phenyl-1H-pyrrol-2(5H)-one (CAS 609794-11-8)
- 4-Methoxy-N-(4-(quinoxalin-2-yloxy)phenyl)benzenesulfonamide (CAS 400080-05-9)
- 2-Bromo-1-(4-bromo-2-chlorophenoxy)-4-nitrobenzene (CAS 477870-51-2)
- 4-Methoxy-N-[(4E)-2-oxo-3-phenyl-1,2,3,4-tetrahydroquinazolin-4-ylidene]benzene-1-sulfonamide (CAS 478043-95-7)
- 7-(Diethylamino)-3-tosyl-2H-chromen-2-one (CAS 866341-20-0)
- 2,6-Diethyl-4-fluorophenol (CAS 2928-20-3)
- Thalidomide-O-acetamido-C5-amine HCl (CAS 2360527-40-6)
- 1-(3,4-Dichlorobenzyl)-1H-pyrazole-4-carbaldehyde (CAS 1177324-36-5)
- 2-(4-Bromo-3-(trifluoromethyl)-1h-pyrazol-1-yl)acetic acid (CAS 1006319-26-1)
- 2-Phenyl-4-pentenenitrile (CAS 5558-87-2)
- 1,2-Dimethyl-4-piperidinol (CAS 45673-43-6)
- 6,8-Dichloro-2h-chromene-3-carbaldehyde (CAS 126350-18-3)
- Ethyl 2-(7-chloro-1,6-naphthyridin-2-yl)acetate (CAS 2639543-31-8)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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 18665070610 / Nicole.chen@cato-chem.com