Pyrimido[4,5-c]pyridazine-5,7(1H,6H)-dione CAS 20886-77-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20886-77-5 |
| Molecular Formula | C6H4N4O2 |
| Molecular Weight | 164.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyrimido[4,5-c]pyridazine-5,7(1H,6H)-dione (CAS 20886-77-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H4N4O2. Molecular weight: 164.12 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H4N4O2 |
| Molecular Weight | 164.12 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
Related Pyrimido Standards
- Pyrimido[5,4-e][1,2,4]triazine-5,7(6H,8H)-dione (CAS 19359-69-4)
- 2H-Pyrimido[2,1-c][1,2,4]triazine-4-thiol (CAS 130314-21-5)
- 9H-Pyrimido[4,5-b]indole (CAS 5059-31-4)
- Pyrimido[4,5-d]pyridazine-2,4(1H,3H)-dione (CAS 17257-96-4)
- 1H-pyrimido[4,5-d]pyrimidine-2,4-dione (CAS 89891-00-9)
- Pyrimido[4,5-d]pyrimidin-4(3H)-one (CAS 7403-26-1)
- pyrimido[4,5-d][1,3]diazine-4-thiol (CAS 6014-08-0)
- Pyrimido[5,4-c]pyridazin-8-amine (CAS 20865-33-2)
Recommended Standards
- Pteridine-4,7-diol (CAS 33669-70-4)
- Tetrazolo[1,5-a]pyridine-5-carboxylic acid (CAS 7477-12-5)
- Oxazolo[5,4-c]pyridine-6-carboxylic acid (CAS 478169-55-0)
- ethyl 4-chloro-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxylate (CAS 86129-62-6)
- 7-Ethoxy-2,4-bis(trifluoromethyl)-1,8-naphthyridine (CAS 339026-22-1)
- Ethyl (4-acetyl-2-nitrophenyl)glycinate (CAS 1293926-69-8)
- 2-amino-2-{4-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl}ethan-1-ol (CAS 1552836-97-1)
- Nilotinib Impurity A (CAS 1345336-53-9)
- (Z)-tert-Butyl 2-(amino(phenyl)methyleneaminooxy)-2-oxoethylcarbamate (CAS 1355338-26-9)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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