4H,5H-[1,2,4]triazolo[1,5-a]quinazolin-5-one CAS 73549-68-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 73549-68-5 |
| Molecular Formula | C9H6N4O |
| Molecular Weight | 186.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4H,5H-[1,2,4]triazolo[1,5-a]quinazolin-5-one (CAS 73549-68-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H6N4O. Molecular weight: 186.17 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H6N4O |
| Molecular Weight | 186.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 4-Amino-N-(2-methoxyethyl)-1,2,5-oxadiazole-3-carboxamide (CAS 361374-58-5)
- 4h,5h-[1,2,4]triazolo[4,3-a]quinazolin-5-one (CAS 92221-89-1)
- 4-(tert-Butoxy)-1,2,5-oxadiazole-3-carboxylic acid (CAS 2735655-44-2)
- 2-(Isobutylamino)-2-methylpropanoic acid (CAS 1183157-21-2)
- 2-Cyclopropylpropan-1-amine hydrochloride (CAS 1209286-56-5)
- 2-(4-Propylphenyl)acetic acid (CAS 26114-12-5)
- 7-Allyl-8-((2-methoxyethyl)amino)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione (CAS 838887-83-5)
- 1-(Tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-4-carboxylic acid (CAS 1250993-97-5)
- 5-Phenylbenzo[d]oxazole (CAS 201415-38-5)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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