Oxazolo[5,4-d]pyrimidine CAS 273-64-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 273-64-3 |
| Molecular Formula | C5H3N3O |
| Molecular Weight | 121.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Oxazolo[5,4-d]pyrimidine (CAS 273-64-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H3N3O. Molecular weight: 121.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H3N3O |
| Molecular Weight | 121.10 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Oxazolo Standards
- Oxazolo[4,5-d]pyrimidine (CAS 42850-93-1)
- Oxazolo[4,5-b]pyridine (CAS 273-97-2)
- Oxazolo[4,5-c]pyridine (CAS 273-56-3)
- Oxazolo[5,4-b]pyridine (CAS 273-62-1)
- 3H-Oxazolo[3,4-c]pyrimidine (CAS 132104-33-7)
- 2H-Oxazolo[2,3-c][1,2,4]triazine (CAS 384851-48-3)
- Oxazolo[2,3,4-cd]pyrrolizine (CAS 163831-74-1)
- Oxazolo[3,2-a][1,3]diazepine (CAS 105066-62-4)
Recommended Standards
- Pyrimidine,2-isocyanate (CAS 72975-49-6)
- Isoxazolo[5,4-d]pyrimidine (CAS 272-04-8)
- (S)-3-Amino-2-fluoro-2-methylpropanoic acid (CAS 114487-86-4)
- (S)-tert-Butyl 3-((6-methoxypyrimidin-4-yl)amino)pyrrolidine-1-carboxylate (CAS 1354010-22-2)
- 2-(Difluoromethyl)-3,4,6-triaminopyridine (CAS 1361835-84-8)
- 1-(tert-butoxycarbonyl)-6-methylpiperidine-2-carboxylic acid (CAS 661458-33-9)
- 1-methyl-1H-imidazo[4,5-c]pyridin-4-amine (CAS 90012-81-0)
- 3-Methyl-2-(pyridin-3-yl)-2,3-dihydroquinazolin-4(1H)-one (CAS 1245569-33-8)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinaldehyde (CAS 1310383-00-6)
- (Pro30,Tyr32,Leu34)-Neuropeptide Y (28-36) (CAS 161650-01-7)
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