3-(4-Chlorophenyl)-2H-chromeno[2,3-d]pyrimidine-2,5(3H)-dione CAS 343375-21-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 343375-21-3 |
| Molecular Formula | C17H9ClN2O3 |
| Molecular Weight | 324.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Chlorophenyl)-2H-chromeno[2,3-d]pyrimidine-2,5(3H)-dione (CAS 343375-21-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C17H9ClN2O3. Molecular weight: 324.72 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C17H9ClN2O3 |
| Molecular Weight | 324.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 4-(4-Chlorophenyl)-2-(4-fluorophenoxy)pyridine-3-carbonitrile (CAS 339103-70-7)
- 4-(4-Chlorophenyl)-6-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 866143-57-9)
- 5-(4-Chlorophenyl)-2-(4-fluorophenoxy)nicotinonitrile (CAS 338954-69-1)
- 6-(2-Chlorophenyl)-2-(4-fluorophenoxy)pyridine-3-carbonitrile (CAS 306977-96-8)
- 6-(4-Chlorophenyl)-2-(4-fluorophenoxy)pyridine-3-carbonitrile (CAS 252059-12-4)
- 1-(3-Chlorophenyl)-5-(3-(trifluoromethyl)phenyl)-1H-tetrazole (CAS 338411-41-9)
- 5-(3-Chlorophenyl)-1-[3-(trifluoromethyl)phenyl]-1H-1,2,3,4-tetrazole (CAS 338411-64-6)
- 1-(4-Chlorophenyl)-4-ethoxy-[1,2,4]triazolo[4,3-a]quinoxaline (CAS 138679-22-8)
Recommended Standards
- 2-(8-Chloro-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7h-purin-7-yl)ethane-1-sulfonyl fluoride (CAS 877964-18-6)
- Ethyl 7-chloro-1-ethyl-6-nitro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 70186-33-3)
- Ethyl 2-[3-(2-chlorobenzyl)-2,4,5-trioxo-1-imidazolidinyl]acetate (CAS 128043-66-3)
- 2-Chloro-4,5,6-trimethylnicotinonitrile (CAS 91591-64-9)
- 2-(Trifluoromethyl)pyrimidine-4-carbonitrile (CAS 916210-03-2)
- (4-Bromo-3-fluorophenyl)methanesulfonyl Chloride (CAS 1536732-85-0)
- 3-Phenylbenzo[f]quinoline-1-carboxylic Acid (CAS 5278-84-2)
- 5-Ethyl-2,2'-anhydrouridine (CAS 72503-93-6)
- 1H-Indazole-4-carbaldehyde (CAS 669050-70-8)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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