4-Oxo-3,4-dihydrophthalazine-1-carboxylic acid CAS 3260-44-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3260-44-4 |
| Molecular Formula | C9H6N2O3 |
| Molecular Weight | 190.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Oxo-3,4-dihydrophthalazine-1-carboxylic acid (CAS 3260-44-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H6N2O3. Molecular weight: 190.16 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H6N2O3 |
| Molecular Weight | 190.16 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 1-Oxo-1,2-dihydrophthalazine-6-carboxylic acid (CAS 102126-65-8)
- 2-Methyl-2,3-dihydrophthalazine-1,4-dione (CAS 18393-54-9)
- 6-Methyl-2,3-dihydrophthalazine-1,4-dione (CAS 20116-66-9)
- 4-Oxo-3,4-dihydrophthalazine-1-carbohydrazide (CAS 61051-67-0)
- 2-Propyl-2,3-dihydrophthalazine-1,4-dione (CAS 103724-41-0)
- 4-Oxo-3,4-dihydrophthalazine-1-carbonitrile (CAS 7694-84-0)
- 2-Methyl-1,2-dihydrophthalazine (CAS 36438-99-0)
- 2-Phenyl-2,3-dihydrophthalazine-1,4-dione (CAS 5439-98-5)
Recommended Standards
- 4-Oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid (CAS 37976-17-3)
- 4-oxo-3,4-dihydroquinazoline-7-carboxylic acid (CAS 202197-73-7)
- 4-Oxo-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid (CAS 4901-94-4)
- Methyl 2-hydroxy-2-(tetrahydro-2h-pyran-3-yl)acetate (CAS 1341680-43-0)
- 3-Methyl-1-(3-nitrophenyl)butan-1-one (CAS 1267956-72-8)
- Pirfenidone Impurity 38 (CAS CATO-C4X-222938)
- (1S,3R,4R)-3-((tert-Butoxycarbonyl)amino)-4-hydroxycyclohexane-1-carboxylic acid (CAS 2067228-51-5)
- 1-(Furan-2-yl)-2-(piperazin-1-yl)ethan-1-one dihydrochloride (CAS 1306604-95-4)
- 3-Chloro-2-fluoro-6-(trifluoromethyl)benzoic acid (CAS 186517-41-9)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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