6,7-Dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one CAS 35220-35-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 35220-35-0 |
| Molecular Formula | C5H6N4O |
| Molecular Weight | 138.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,7-Dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one (CAS 35220-35-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H6N4O. Molecular weight: 138.13 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H6N4O |
| Molecular Weight | 138.13 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 4 |
Related Dihydro Standards
- 5,7-Dihydro-3H-purin-6(4H)-one (CAS 98325-49-6)
- 5,7-Dihydro-4H-purin-6-ol (CAS 98325-50-9)
- 2-(2-Oxo-2,5-dihydro-1H-pyrrol-3-yl)acetic acid (CAS 117954-76-4)
- 2-Methyl-6,7-dihydro-5H-pyrrolo[1,2-a]imidazol-7-ol (CAS 112513-80-1)
- 6,7-Dihydro-5H-pyrrolo[1,2-a]imidazol-5-ylmethanol (CAS 1330765-06-4)
- 6-Methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (CAS 1706438-18-7)
- (6,7-Dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-7-yl)methanamine (CAS 1707583-98-9)
- (5,6-Dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)methanol (CAS 623564-45-4)
Recommended Standards
- 5-hydrazinyl-2-methyl-1,3-oxazole-4-carbonitrile (CAS 36663-19-1)
- 6-Aminopyrazine-2-carboxamide (CAS 33332-49-9)
- 5-amino-pyrimidine-2-carboxylic acid amide (CAS 56621-97-7)
- 4-Chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid (CAS 1204809-92-6)
- 2-(2-Iodo-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1256781-69-7)
- Ceftiofur Impurity 6 (CAS CATO-C4X-15816)
- Olprinone Impurity 3 (CAS 1202450-63-2)
- Benzylpenicillin EP Impurity E (CAS CATO-C4X-18995)
- Pcb No. 101 (CAS 37680-73-2)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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