(Z)-1-(4-oxothiazolidin-2-ylidene)-3-phenylurea CAS 4650-17-3
| CAS No. | 4650-17-3 |
| Molecular Formula | C10H9N3O2S |
| Molecular Weight | 235.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(Z)-1-(4-oxothiazolidin-2-ylidene)-3-phenylurea (CAS 4650-17-3), molecular formula C10H9N3O2S and molecular weight 235.26 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (Z)-1-(4-oxothiazolidin-2-ylidene)-3-phenylurea (C10H9N3O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C10H9N3O2S |
| Molecular Weight | 235.26 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Z Standards
- 4-((4-Oxothiazolidin-2-ylidene)amino)benzoic acid (CAS 82365-56-8)
- 4-(4-Oxothiazolidin-3-yl)benzoic acid (CAS 109052-53-1)
- 4-((5-Methyl-4-oxothiazolidin-2-ylidene)amino)benzoic acid (CAS 876708-50-8)
- 6-(4-Oxothiazolidin-2-yl)hexanoic acid (CAS 539-35-5)
- 2-(3-Ethyl-4-oxothiazolidin-2-ylidene)malononitrile (CAS 623558-68-9)
- Ethyl 2-(2-oxothiazolidin-3-yl)acetate (CAS 155914-65-1)
- N-(4-oxothiazolidin-2-ylidene)isobutyramide (CAS 448915-09-1)
- 2-(3-Methyl-4-oxothiazolidin-2-ylidene)acetonitrile (CAS 56196-65-7)
Recommended Standards
- (E)-5-(4-Methoxybenzylidene)thiazolidine-2,4-dione (CAS 74942-48-6)
- (Z)-5-(4-Methoxybenzylidene)thiazolidine-2,4-dione (CAS 74942-63-5)
- (4-Nitrophenyl)(thiophen-2-yl)methanol (CAS 40310-37-0)
- 1-(5-Hydroxy-2-(methylthio)pyrido[2,3-d]pyrimidin-6-yl)ethanone (CAS 59582-75-1)
- 4-Cyclopropoxy-6-fluoro-N-methylpyridin-2-amine (CAS 1243481-53-9)
- Ethyl (((1H-pyrazol-3-yl)imino)methyl)carbamate (CAS 62156-23-4)
- 3-Methyl-4-(trifluoromethoxy)aniline (CAS 183945-52-0)
- 4-Hydrazinyl-7,8-dimethoxy-5H-pyrimido[5,4-b]indole (CAS 121218-45-9)
- 5-(Benzyloxy)-2-(tert-butyl)-4-chloropyridazin-3(2H)-one (CAS 88094-30-8)
- N-(2-(1H-imidazol-5-yl)ethyl)-2-(1H-1,2,4-triazol-1-yl)acetamide (CAS 860648-92-6)
- 2-(3-bromophenoxy)nicotinic acid (CAS 83164-82-3)
- N-(4-Fluoro-phenyl)-guanidine oxalate (CAS 1187927-56-5)
- Levofloxacin impurity 01 (CAS 154228-18-9)
- Cholecystokinin Octapeptide (desulfated) (CAS 25679-24-7)
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