Ethyl 5,7-dioxo-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate CAS 1207175-72-1
| CAS No. | 1207175-72-1 |
| Molecular Formula | C8H6N4O4 |
| Molecular Weight | 222.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 5,7-dioxo-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate (CAS 1207175-72-1), a certified reference material (molecular formula C8H6N4O4, MW 222.16 g/mol) for analytical method development and quality control.
Ethyl 5,7-dioxo-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate (C8H6N4O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C8H6N4O4 |
| Molecular Weight | 222.16 g/mol |
| Appearance | Pale yellow to 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 5-Methyl-4,6-dinitro-1H-indazole (CAS 1167056-10-1)
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- 3-[3-(trifluoromethyl)-1h-pyrazol-1-yl]butanoic acid (CAS 1153329-93-1)
- 1-Isopropyl-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 1235440-61-5)
- Butoxytriethoxytitanium (CAS 93918-91-3)
- 2-(1H-Pyrrol-1-yl)-1,3,4-thiadiazole (CAS 881041-56-1)
- 2-Methylpropyl 4-(2-aminophenyl)piperazine-1-carboxylate (CAS 136817-34-0)
- 2-(3-Bromofuran-2-yl)-3-methylbutanoic acid (CAS 1342788-01-5)
- 5-Bromo-1-(3-chlorobenzyl)-1H-pyrazole (CAS 1427013-90-8)
- 2-(Benzylamino)-1-phenylethan-1-ol (CAS 27159-30-4)
- (4-((trimethylsilyl)ethynyl)phenyl)boronic acid (CAS 630127-51-4)
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- 5-[(2-fluorophenyl)methyl]-1,2,4-oxadiazole-3-carboxylic acid (CAS 1339354-36-7)
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