7-Hydroxy-3-(4-phenyl-4H-1,2,4-triazol-3-yl)-4H-chromen-4-one CAS 66819-11-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 66819-11-2 |
| Molecular Formula | C17H11N3O3 |
| Molecular Weight | 305.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Hydroxy-3-(4-phenyl-4H-1,2,4-triazol-3-yl)-4H-chromen-4-one (CAS 66819-11-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C17H11N3O3. Molecular weight: 305.29 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C17H11N3O3 |
| Molecular Weight | 305.29 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 3 |
Related Hydroxy Standards
- 4-Hydroxy-6-phenyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (CAS 18706-64-4)
- 4-Hydroxy-3-phenyl-2H-pyrano[2,3-b]quinoline-2,5(10H)-dione (CAS 62668-76-2)
- 4-Hydroxy-3-phenyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (CAS 62668-78-4)
- (3-Hydroxy-1,2-dihydroquinoxaline-1-carbonyl)-L-leucine (CAS 1173685-44-3)
- 4-(7-Hydroxy-2-isopropyl-4-oxoquinazolin-3(4H)-yl)benzonitrile (CAS 871814-52-7)
- 4-Acetyl-3-hydroxy-1-[2-(2-hydroxy-ethylamino)-ethyl]-5-pyridin-2-yl-1,5-dihydro-pyrrol-2-one (CAS 436088-90-3)
- 4-Hydroxy-5-(imino(phenyl)methyl)-1-methyl-[2,2'-bipyridin]-6(1H)-one (CAS 65881-74-5)
- 4-Hydroxy-6-methyl-1-(3,4,5-trimethoxybenzyl)pyridin-2(1H)-one (CAS 868213-24-5)
Recommended Standards
- 4-(Morpholinomethyl)-3-(4-nitrophenyl)isoxazol-5(2H)-one (CAS 61194-99-8)
- Benzyl ((2S,3S)-1,1,1-trifluoro-2-hydroxy-4-methylpentan-3-yl)carbamate (CAS 291778-49-9)
- 4-(3-Oxo-3,5-dihydro-2H-pyrazolo[4,3-c]quinolin-2-yl)benzoic acid (CAS 77779-58-9)
- 1,4-Dibromo-2,5-diiodobenzene (CAS 63262-06-6)
- 6-(3-Fluorobenzyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 2055841-39-7)
- 5-(4-Methoxyphenyl)-1-(3-methoxypropyl)-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (CAS 879329-84-7)
- 2,4,6-Tris(bromofluoromethyl)-1,3,5-triazine (CAS 402-94-8)
- Bis(ethylbenzene)chromium [mixture of (C2H5)xC6H6-x where x = 0-4)] (CAS 12212-68-9)
- 3-(4-Fluoro-3-methylphenyl)prop-2-en-1-amine (CAS 1344841-48-0)
- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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