Isoxazolo[3,4-d]pyrimidine CAS 28648-19-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 28648-19-3 |
| Molecular Formula | C5H3N3O |
| Molecular Weight | 121.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Isoxazolo[3,4-d]pyrimidine (CAS 28648-19-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H3N3O. Molecular weight: 121.10 g/mol. Batch-specific COA and technical support are available on request.
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.) | 1965 |
| Nitrogen Atoms | 3 |
Related Isoxazolo Standards
- Isoxazolo[4,3-d]pyrimidine (CAS 272-58-2)
- Isoxazolo[5,4-d]pyrimidine (CAS 272-04-8)
- Isoxazolo[4,3-b]pyridine (CAS 173894-73-0)
- Isoxazolo[4,5-b]pyridine (CAS 76807-98-2)
- Isoxazolo[5,4-b]pyridine (CAS 272-03-7)
- Isoxazolo[5,4-c]pyridine (CAS 64761-69-9)
- Isoxazolo[4,5-b]pyridin-3-amine (CAS 114080-93-2)
- Isoxazolo[5,4-c]pyridin-3-amine (CAS 114080-94-3)
Recommended Standards
- Favipiravir Impurity 33 (CAS 81411-78-1)
- D-Threose-4- (CAS 90913-09-0)
- D-Threose-2- (CAS 478506-49-9)
- N-(4-Ethylbenzo[d]thiazol-2-yl)-2,3-dimethoxybenzamide (CAS 895444-94-7)
- n-(4-Amino-3-bromophenyl)acetamide (CAS 860745-87-5)
- 3-(Aminomethyl)pyridin-2(1H)-one (CAS 123369-45-9)
- 6-(1-Butylpiperidin-2-yl)quinoline (CAS 1355225-87-4)
- Tert-butyl (3S,4S)-3-amino-4-hydroxyazepane-1-carboxylate (CAS 1932152-61-8)
- 4-[5-(2-methoxyphenyl)-1,2,4-oxadiazol-3-yl]piperidine hydrochloride (CAS 1787896-62-1)
- A-18-F-NH2; Morphine Modulating Neuropeptide (CAS 99588-52-0)
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