4-(Methylthio)-N-(4-nitrobenzylidene)-2-(4-nitrophenyl)oxazol-5-amine CAS 31666-15-6
| CAS No. | 31666-15-6 |
| Molecular Formula | C17H12N4O5S |
| Molecular Weight | 384.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H12N4O5S, 4-(Methylthio)-N-(4-nitrobenzylidene)-2-(4-nitrophenyl)oxazol-5-amine 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 384.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
4-(Methylthio)-N-(4-nitrobenzylidene)-2-(4-nitrophenyl)oxazol-5-amine (CAS 31666-15-6), molecular formula C17H12N4O5S and molecular weight 384.37 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 4-(Methylthio)-N-(4-nitrobenzylidene)-2-(4-nitrophenyl)oxazol-5-amine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H12N4O5S |
| Molecular Weight | 384.37 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 6-(Methylthio)-4-(naphthalen-2-yloxy)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 339106-45-5)
- 4-Methyl-3-(methylthio)-5-(3-((3-(trifluoromethyl)benzyl)oxy)thiophen-2-yl)-4H-1,2,4-triazole (CAS 343376-19-2)
- 2-(Methylthio)-N-(4-(5,6,7,8-tetrahydronaphthalen-2-yl)thiazol-2-yl)nicotinamide (CAS 568558-04-3)
- N-(2-(Methylthio)phenyl)-1-phenyl-5-(pyridin-2-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 1396875-21-0)
- (S)-4-(Methylthio)-2-palmitamidobutanoic acid (CAS 36416-81-6)
- 3-(4-(Methylthio)phenyl)-5-(((1-phenyl-1H-imidazol-2-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1115958-76-3)
- 5,5'-Bis(methylthio)-4,4'-diphenyl-4H,4'H-3,3'-bi(1,2,4-triazole) (CAS 637325-36-1)
- 2-(Methylthio)-N-(4-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)phenyl)nicotinamide (CAS 756863-04-4)
Recommended Standards
- 1-Oxo-1-((3-(trifluoromethyl)phenyl)amino)propan-2-yl 2-(methylthio)nicotinate (CAS 522641-19-6)
- N-(2-(1H-indol-3-yl)ethyl)-4-(trifluoromethoxy)benzenesulfonamide (CAS 880139-21-9)
- 1H-Benzimidazolium, 1,2-dimethyl-3-[(4-sulfophenyl)methyl]-5-(trifluoromethyl)-, inner salt (CAS 68959-22-8)
- N-(3,4-Difluorophenyl)-1-(4-fluorobenzenesulfonyl)pyrrolidine-2-carboxamide (CAS 317377-88-1)
- [1,1'-Biphenyl]-2-sulfonic acid (CAS 19813-86-6)
- 4,6-Difluoro-3-iodo-1-methyl-1H-indazole (CAS 1824065-77-1)
- N-(3-Cyclopropoxy-2-ethylpyridin-4-yl)methanesulfonamide (CAS 1243345-75-6)
- (1A'R,2a'R,6'S,6a'S,7'S,7a'R)-6',7'-dihydroxy-1a',7a'-dihydro-7'H-spiro[naphtho[1,8-de][1,3]dioxine-2,2'-[2a,6a]epoxynaphtho[2,3-b]oxiren]-3'(6'H)-one (CAS 152607-03-9)
- Ethyl 2-((5-nitrofuran-2-yl)methylene)hydrazinecarboxylate (CAS 5407-77-2)
- 2-Amino-2-methylbutanenitrile hydrochloride (CAS 50846-37-2)
- 3-Amino-4-phenyl-N-(o-tolyl)-6-(p-tolyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 332114-37-1)
- 3-(Trifluoromethyl)-5H-pyrano[4,3-b]pyridin-8(7H)-one (CAS 1260663-39-5)
- Pimecrolimus Impurity 16 (CAS CATO-C4X-173116)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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