(5E)-2-Mercapto-5-(2-nitrobenzylidene)-3-phenyl-3,5-dihydro-4H-imidazol-4-one CAS 53865-29-5
| CAS No. | 53865-29-5 |
| Molecular Formula | C16H11N3O3S |
| Molecular Weight | 325.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5E)-2-Mercapto-5-(2-nitrobenzylidene)-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 53865-29-5), molecular formula C16H11N3O3S and molecular weight 325.34 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (5E)-2-Mercapto-5-(2-nitrobenzylidene)-3-phenyl-3,5-dihydro-4H-imidazol-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 325.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H11N3O3S |
| Molecular Weight | 325.34 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.) | 1972 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related E Standards
- (5E)-2-Mercapto-5-(4-nitrobenzylidene)-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 53514-58-2)
- 2-(2-Mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-(2-methyl-4-nitrophenyl)acetamide (CAS 1142206-79-8)
- 2-(2-Mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-(2-methyl-5-nitrophenyl)acetamide (CAS 1142206-82-3)
- Methyl 2-{[(2-mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)acetyl]amino}benzoate (CAS 1142206-77-6)
- 3-{[(2-Mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)acetyl]amino}-4-methylbenzoic acid (CAS 1142207-13-3)
- 1-Mercapto-4-(2-methoxyphenyl)-[1,2,4]triazolo[4,3-a]quinazolin-5(4h)-one (CAS 67443-01-0)
- (S)-2-(2-mercapto-4-oxoquinazolin-3(4H)-yl)-3-phenylpropanoic acid (CAS 1212412-75-3)
- 2-mercapto-4-oxo-3-(2-phenylethyl)-3,4-dihydroquinazoline-7-carboxylic acid (CAS 422271-07-6)
Recommended Standards
- (S)-1-(tert-Butoxycarbonyl)-4-(5-fluoropyridin-3-yl)piperazine-2-carboxylic acid 1787308-28-4 (CAS 1787308-28-4)
- (S)-1-(tert-Butoxycarbonyl)-4-(3-fluoropyridin-2-yl)piperazine-2-carboxylic acid 1787072-29-0 (CAS 1787072-29-0)
- (E)-3-(5-(4-nitrophenyl)furan-2-yl)-1-(thiophen-2-yl)prop-2-en-1-one (CAS 304677-48-3)
- (S)-1-(tert-Butoxycarbonyl)-4-(6-fluoropyridin-2-yl)piperazine-2-carboxylic acid 1786752-15-5 (CAS 1786752-15-5)
- R(+)-Methcathinone HCl (CAS 152610-69-0)
- 2-Bromo-4-(chloromethyl)-3-fluoropyridine (CAS 1227606-56-5)
- Galantamine Hydrobromide Racemic (CAS 193146-85-9)
- 1-(1-Phenyl-1H-1,2,3-triazol-4-yl)ethanone (CAS 128979-27-1)
- ((S)-2-(4-Oxobenzo[d][1,2,3]triazin-3(4H)-yl)propanoyl)-L-leucine (CAS 1173680-15-3)
- 2,3-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1487353-47-8)
- 2-azido-1,3-dimethylbenzene (CAS 26334-20-3)
- Tris(trimethylsilyl)phosphine (ca. 10% in Hexane) (CAS 15573-38-3)
- (1R,3aR,7aR)-1-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-7a-methyloctahydro-1H-inden-4-ol (CAS 55812-82-3)
- 69558-55-0 O3Y80ZF13F Thymopentin Thymopentin [USAN:INN:BAN] L-Tyrosine, N-(N-(N-(N2-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- L-Tyrosine, N-(N-(N-(N(sup 2)-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- Thymopentine [French] Thymopentinum [Latin] Timopentina [Spanish] Thymopoietin 32-36 TP-5 Thymopoietin pentapeptide ORF-15244 Thymopentine Thymopentinum Timopentina ORF 15244 UNII-O3Y80ZF13F (CAS 69558-55-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com