[1,2,4]Triazolo[1,5-b][1,2,4]triazin-7(3H)-one CAS 85276-92-2
| CAS No. | 85276-92-2 |
| Molecular Formula | C4H3N5O |
| Molecular Weight | 137.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
[1,2,4]Triazolo[1,5-b][1,2,4]triazin-7(3H)-one (CAS 85276-92-2) is a high-purity analytical reference standard with the molecular formula C4H3N5O and a molecular weight of 137.10 g/mol.
[1,2,4]Triazolo[1,5-b][1,2,4]triazin-7(3H)-one (C4H3N5O) contains an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H3N5O |
| Molecular Weight | 137.10 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.) | 1981 |
| Nitrogen Atoms | 5 |
Related Triazolo Standards
- [1,2,4]Triazolo[3,4-f][1,2,4]triazin-8-ol (CAS 1427501-61-8)
- [1,2,4]triazolo[4,3-a][1,3,5]triazin-5-ol (CAS 1427501-70-9)
- [1,2,4]Triazolo[1,5-a][1,3,5]triazin-7(6H)-one (CAS 1489-03-8)
- [1,2,4]Triazolo[5,1-c][1,2,4]triazin-4(1H)-one (CAS 57351-74-3)
- 6H-[1,2,3]Triazolo[4,5-d]pyrimidin-5-amine (CAS 10179-84-7)
- [1,2,4]Triazolo[1,5-c]pyrimidin-8-ol (CAS 106921-59-9)
- 1H-[1,2,3]Triazolo[4,5-b]pyridin-6-ol (CAS 137326-91-1)
- 1H-[1,2,4]triazolo[1,5-a]pyrimidin-5-one (CAS 14384-66-8)
Recommended Standards
- 4,6-Dihydroxypyrimidine-5-carbonitrile (CAS 1936377-42-2)
- (1R,4S,5R)-5-(Trifluoromethyl)-2-azabicyclo[2.1.0]pentane (CAS 1623162-47-9)
- [1,2,5]Oxadiazolo[3,4-d]pyrimidin-7-amine (CAS 22003-13-0)
- 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carbonitrile (CAS 79457-91-3)
- 1,2,3-Trichlorobenzene (CAS 87-61-6)
- 3-Bromo-4-methoxybenzimidamide (CAS 687985-65-5)
- N-Desmethyl Rosiglitazone-d4 (CAS 1215407-67-2)
- 5-chloro-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 23819-92-3)
- Nicorandil Impurity N1 (CAS 46053-56-9)
- (R)-2-(2-bromo-4-methylphenyl)pyrrolidine (CAS 1213308-93-0)
- 6-(Thiophen-2-yl)pyridazin-3-amine (CAS 105538-01-0)
- (3-Fluoropyridin-4-yl)(3-hydroxypyrrolidin-1-yl)methanone (CAS 1479634-87-1)
- 22913-24-2 Benzo[b]thiophene-2-carboxylic acid methyl ester Methyl benzo[b]thiophene-2-carboxylate Methyl thianaphthene-2-carboxylate (CAS 22913-24-2)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
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 18665070610 / Nicole.chen@cato-chem.com