Pyrazolo[1,5-a][1,3,5]triazine-2,4-diol CAS 34683-40-4
Purity 97%+In StockPharmaceutical Standards
| 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
Pyrazolo[1,5-a][1,3,5]triazine-2,4-diol (CAS 34683-40-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N4O2. Molecular weight: 152.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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
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- 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)
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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)
- 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)
- 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)
- Cycloaspeptide D (CAS 691363-62-9)
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