4-(2-Hydroxyethyl)-5-oxo-2,5-dihydro-1H-pyrazole-3-carboxylic acid CAS 42562-56-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 42562-56-1 |
| Molecular Formula | C6H8N2O4 |
| Molecular Weight | 172.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Hydroxyethyl)-5-oxo-2,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 42562-56-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H8N2O4. Molecular weight: 172.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O4 |
| Molecular Weight | 172.14 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 methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid (CAS 51727-06-1)
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- 3-Hydroxy-2,6-bis(hydroxymethyl)-4-pyrone (CAS 2029-49-4)
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- (R)-2-Amino-3-(benzo[d][1,3]dioxol-4-yl)propanoic acid (CAS 1270083-04-9)
- (2-Fluorotetrahydro-1H-pyrrolizin-7a(5H)-yl)methanol-d2 (CAS 2883770-48-5)
- (R)-6,7-Dimethoxy-1,2-dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 51745-28-9)
- Ethyl 2-(((((9H-fluoren-9-yl)methoxy)carbonyl)oxy)imino)-2-cyanoacetate (CAS 1235983-26-2)
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