2H-[1,2,3]Triazolo[4,5-b]pyrazine CAS 273-95-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 273-95-0 |
| Molecular Formula | C4H3N5 |
| Molecular Weight | 121.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2H-[1,2,3]Triazolo[4,5-b]pyrazine (CAS 273-95-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H3N5. Molecular weight: 121.10 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H3N5 |
| 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 | 5 |
Related H Standards
- [1,2,4]Triazolo[1,5-a][1,3,5]triazine (CAS 348-30-1)
- [1,2,4]Triazolo[1,5-b][1,2,4]triazine (CAS 61304-18-5)
- 2H-[1,2,3]Triazolo[4,5-d]pyrimidine (CAS 273-39-2)
- 3H-[1,2,3]Triazolo[4,5-d]pyrimidine (CAS 273-40-5)
- 5H-[1,2,3]Triazolo[4,5-d]pyrimidine (CAS 273-38-1)
- 7H-[1,2,3]Triazolo[4,5-d]pyrimidine (CAS 273-37-0)
- [1,2,3]Triazolo[1,5-a]pyrazine (CAS 51392-75-7)
- [1,2,3]Triazolo[1,5-a]pyrimidine (CAS 25338-10-7)
Recommended Standards
- 1,6-Dihydro-6-oxo-3-pyridazinecarbonitrile (CAS 468067-87-0)
- 2-Oxo-2,3-dihydropyrimidine-4-carbonitrile (CAS 96102-45-3)
- 3-Cyanopyrazine 1-oxide (CAS 25594-31-4)
- 6-(tert-Butyl)-3,5-dichloropicolinonitrile (CAS 2416992-29-3)
- 4-{[3-(trifluoromethyl)phenyl]carbamoyl}phenyl N,N-dimethylsulfamate (CAS 338396-16-0)
- 3-Isopropyl-1-(2,2,2-trifluoroethyl)piperazine (CAS 1443979-62-1)
- (R)-Ethyl 2-amino-4-fluoro-4-methylpentanoate hydrochloride (CAS 1447616-16-1)
- Vitamin A EP Impurity C（Mixture of Z and E Isomers） (CAS 16729-22-9 ((3E)-Isomer))
- 4,4'-Disulfanediylbis(butan-1-ol) (CAS 30453-20-4)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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