4-((6-Nitrobenzo[d][1,3]dioxol-5-yl)methylene)-2-phenyloxazol-5(4H)-one CAS 21873-12-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21873-12-1 |
| Molecular Formula | C17H10N2O6 |
| Molecular Weight | 338.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-((6-Nitrobenzo[d][1,3]dioxol-5-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 21873-12-1), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C17H10N2O6. Molecular weight: 338.27 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C17H10N2O6 |
| Molecular Weight | 338.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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.) | 1963 |
| Nitrogen Atoms | 2 |
Related Nitrobenzo Standards
- 2-(5-Nitrobenzo[b]thiophen-2-yl)-5-(p-tolyl)-1,3,4-oxadiazole (CAS 477857-69-5)
- (6-Nitrobenzo[d][1,3]dioxol-5-yl)methyl 3-nitrobenzoate (CAS 331461-78-0)
- (6-Nitrobenzo[d][1,3]dioxol-5-yl)methyl 4-nitrobenzoate (CAS 331460-10-7)
- 2-(5-Nitrobenzo[b]thiophen-2-yl)-5-(thiophen-2-yl)-1,3,4-oxadiazole (CAS 477847-62-4)
- 2-(5-Nitrobenzo[b]thiophen-2-yl)-5-phenyl-1,3,4-oxadiazole (CAS 477847-60-2)
- 2-((6-Nitrobenzo[d][1,3]dioxol-5-yl)methylene)-1H-indene-1,3(2H)-dione (CAS 39752-07-3)
- 2-((6-Nitrobenzo[d]thiazol-2-yl)carbamoyl)phenyl acetate (CAS 349132-95-2)
- (6-Nitrobenzo[d][1,3]dioxol-5-yl)methyl 4-(tert-butyl)benzoate (CAS 331459-92-8)
Recommended Standards
- 2,7-Decahydronaphthalenediol (CAS 20917-99-1)
- 5-(2-Bromophenyl)-4-cyclohexyl-4H-1,2,4-triazole-3-thiol (CAS 312501-80-7)
- 2,2-Difluoro-1-(4-methylpiperazin-1-yl)-2-(3-(trifluoromethyl)phenoxy)ethan-1-one (CAS 338792-15-7)
- 2-(2,3-Difluorophenyl)[1,3]dioxolane (CAS 773101-60-3)
- 1-(2-Chlorophenyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid (CAS 437711-25-6)
- 4-Chloro-6-ethyl-2-(4-nitrophenyl)pyrimidine (CAS 1153297-96-1)
- 7-fluoro-1,2,3,4-tetrahydroisoquinoline-8-carboxylic acid hydrochloride (CAS 1989671-78-4)
- 2-(3-Amino-1H-isoindol-1-ylidene)-2-(phenylsulfonyl)acetonitrile (CAS 87736-31-0)
- (2-Chloro-1,1-difluoroethyl)benzene (CAS 55805-08-8)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
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 13829788188 / jacky.chen@cato-chem.com