Pyrimido[4,5-g]quinazoline-4,9(3H,8H)-dione CAS 203451-82-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 203451-82-5 |
| Molecular Formula | C10H6N4O2 |
| Molecular Weight | 214.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyrimido[4,5-g]quinazoline-4,9(3H,8H)-dione (CAS 203451-82-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C10H6N4O2. Molecular weight: 214.18 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C10H6N4O2 |
| Molecular Weight | 214.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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.) | 2015 |
| Nitrogen Atoms | 4 |
Related Pyrimido Standards
- Pyrimido[4,5,6-gh]perimidine (CAS 194-10-5)
- 5H-pyrimido[5,4-b]indole-4-thiol (CAS 107400-98-6)
- 1H-Pyrimido[4,5-b]indole-2,4(3H,9H)-dione (CAS 115127-16-7)
- 5H-pyrimido[5,4-b]indole-8-carbaldehyde (CAS 1098855-14-1)
- 37497-00-0 7H-Pyrimido(4,5-b)(1,4)thiazine, 6-amino-4-methoxy- 6-Amino-4-methoxy-7H-pyrimido(4,5-b)(1,4)thiazine BRN 0613793 (CAS 37497-00-0)
- Pyrimido[4,5-b]quinolin-2-amine (CAS 582334-02-9)
- Pyrimido[5,4-d]Pyrimidine Impurity 1 (CAS 6713-54-8)
- 1-(Pyrimido[5,4-e][1,2,4]triazin-5-yl)guanidine (CAS 21309-00-2)
Recommended Standards
- Methyl 3-(4-amino-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)propanoate (CAS 274266-12-5)
- (E)-4-(2-Trifluoromethyl-phenyl)-but-3-en-2-one 76293-37-3 9378AE C11H9F3O (CAS 76293-37-3)
- Methyl 2-((2-methyl-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)amino)acetate (CAS 374921-06-9)
- N-(4-Chloro-3-hydroxyphenyl)methanesulfonamide (CAS 1243461-89-3)
- 3-(3-((tert-Butyldimethylsilyl)oxy)-2,2-dimethylpropyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole (CAS 2057515-03-2)
- Tert-butyl ((3R,3aR,6S,6aR)-6-aminohexahydrofuro[3,2-b]furan-3-yl)carbamate (CAS 1570346-43-8)
- (4-Aminopiperidin-1-yl)(4-methyl-1,2,3-thiadiazol-5-yl)methanone (CAS 1154257-59-6)
- Voriconazole Impurity 67 (CAS CATO-C4X-136667)
- 1-(2-Amino-3-methylbutyl)-3-ethylurea (CAS 1341496-02-3)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
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