Pyrazolo[1,5-a][1,3,5]triazine-2,4-diol CAS 34683-40-4
| CAS No. | 34683-40-4 |
| Molecular Formula | C5H4N4O2 |
| Molecular Weight | 152.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 152.11 g/mol gives Pyrazolo[1,5-a][1,3,5]triazine-2,4-diol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Pyrazolo[1,5-a][1,3,5]triazine-2,4-diol (CAS 34683-40-4) is a high-purity analytical reference standard with the molecular formula C5H4N4O2 and a molecular weight of 152.11 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Pyrazolo[1,5-a][1,3,5]triazine-2,4-diol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C5H4N4O2 |
| Molecular Weight | 152.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 4 |
Related Pyrazolo Standards
- 1H-Pyrazolo[3,4-d]pyrimidine-4,6(3aH,5H)-dione (CAS 1049677-62-4)
- 1H-Pyrazolo[3,4-d]pyrimidine-3,4(2H,7H)-dione (CAS 128850-53-3)
- 1H-Pyrazolo[3,4-d]pyrimidine-4,6(2H,5H)-dione (CAS 184764-63-4)
- 2H-Pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (CAS 187486-05-1)
- 1H-Pyrazolo[3,4-b]pyrazine-5,6(4H,7H)-dione (CAS 21616-67-1)
- 3H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione (CAS 91113-87-0)
- 1H-Pyrazolo[3,4-d]pyrimidine, 3-fluoro-1-methyl- (CAS 1219636-62-0)
- 2-(1H-Pyrazolo[1,5-b][1,2,4]triazol-2-yl)ethanol (CAS 197355-78-5)
Recommended Standards
- N-(4,6-Dihydroxypyrimidin-2-yl)cyanamide (CAS 55067-10-2)
- trans-3-(Trifluoromethyl)cyclobutane-1-carbaldehyde (CAS 2412762-56-0)
- Methyl 4-cyano-1H-1,2,3-triazole-5-carboxylate (CAS 60034-39-1)
- 3-hydroxy-3H-[1,2,3]triazolo[4,5-b]pyridine 1-oxide (CAS CATO-C3D-5795)
- methyl 2-methyl-3-oxo-2H,3H-imidazo[1,5-a]pyridine-1-carboxylate (CAS 99615-34-6)
- 2-Imidazolidinone, 1-(2-aminoethyl)-3-methyl-, hydrochloride (1:1) (CAS 1609403-83-9)
- [6-(trifluoromethyl)-1H-indazol-4-yl]boronic acid (CAS 1454301-73-5)
- 2,3,4-Tri-O-benzoyl-5-bromo-α-D-glucuronic Acid Methyl Ester (CAS 103674-69-7)
- 5-(1-Phenylpropan-2-yl)-1H-pyrazole-3-carboxylic acid (CAS 856257-03-9)
- 6'-Chloro-2,2,2,2',3'-pentafluoroacetophenone (CAS 1208078-22-1)
- 3-Amino-1-(4-fluorobenzyl)-4-(p-tolyl)azetidin-2-one (CAS 1291490-60-2)
- 2-Phenyl-5-tosylpyrimidin-4-ol (CAS 885949-45-1)
- 2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-3-methoxybenzoic acid (CAS 372144-26-8)
- Cycloaspeptide D (CAS 691363-62-9)
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