5,7-Dimethyl-3-phenylisoxazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione CAS 65183-49-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 65183-49-5 |
| Molecular Formula | C13H11N3O3 |
| Molecular Weight | 257.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5,7-Dimethyl-3-phenylisoxazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (CAS 65183-49-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C13H11N3O3. Molecular weight: 257.24 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C13H11N3O3 |
| Molecular Weight | 257.24 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
- 4-{[(2,2-Dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)-methyl]amino}butanoic acid (CAS 1273578-10-1)
- 1,8-Dimethyl-4-oxo-4,5-dihydroimidazo[1,2-a]quinoxaline-2-carboxylic acid (CAS 164329-73-1)
- 1,9-Dimethyl-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyrimidine-2-carboxylic acid (CAS 724738-62-9)
- 5-(1,3-Dimethyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 1174849-53-6)
- 1-(1,1-Dimethyl-3,4-dihydroisoquinolin-2(1H)-yl)-2,2,2-trifluoroethan-1-one (CAS 2089335-02-2)
- 7-(1,5-Dimethyl-1h-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 957489-92-8)
- 4,4-Dimethyl-1-oxo-2,3,4,9-tetrahydro-1H-carbazole-6-carboxylic acid (CAS 1424995-09-4)
- 2,4-Dimethyl-1-((3-nitrobenzyl)oxy)benzene (CAS 712344-65-5)
Recommended Standards
- 5-(Benzyloxy)-2-nitrobenzaldehyde (CAS 58662-54-7)
- 5-Fluoro-7-(methylsulfonyl)-1H-indole-2-carboxylic acid (CAS 849035-87-6)
- 5-(6-Methylpyridin-3-yl)isophthalic acid (CAS 2590617-12-0)
- 4-Cyclopropoxy-6-iodopyridine-2-sulfonamide (CAS 1243464-39-2)
- 1-(3,4,5-trichlorophenyl)piperazine hydrochloride (CAS 1909316-37-5)
- 4-Iodo-1-(2-methoxyethyl)-3,5-dimethyl-1h-pyrazole (CAS 1501263-17-7)
- 3-Ethyl-[1,2,4]triazolo[4,3-a]pyridin-6-amine (CAS 1082594-12-4)
- 1-((5-Methylthiophen-2-yl)methyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 1282137-50-1)
- 2-Phenylmorpholine hydrobromide (CAS 859824-04-7)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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