4-Hydroxy-5-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-α-D-ribofuranosyl]-1H-pyrazole-3-carboxylic Acid Ethyl Ester CAS 83686-34-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 83686-34-4 |
| Molecular Formula | C33H34N2O7 |
| Molecular Weight | 570.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-5-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-α-D-ribofuranosyl]-1H-pyrazole-3-carboxylic Acid Ethyl Ester (CAS 83686-34-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C33H34N2O7. Molecular weight: 570.63 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C33H34N2O7 |
| Molecular Weight | 570.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
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Recommended Standards
- 4,4',4'',4'''-(Pyrene-1,3,6,8-tetrayl)tetraphenol (CAS 835878-20-1)
- 4,4'-(((Oxybis(ethane-2,1-diyl))bis(oxy))bis(4,1-phenylenesulfonyl))diphenol (CAS 29239-85-8)
- Canagliflozin Impurity 42 (CAS CATO-C4X-112342)
- 3-fluoro-2-methoxy-pyridine-4-carboxylic acid (CAS 1214362-24-9)
- 7-(Thiophen-2-yl)-6-oxa-9-azaspiro[4.5]decane (CAS 1489553-91-4)
- N-(4-((1,2-Bis(5-nitrofuran-2-yl)vinyl)sulfonyl)phenyl)acetamide (CAS 53828-82-3)
- 2-(1-(2-Fluorophenyl)cyclobutyl)acetic acid (CAS 1516694-06-6)
- 2-amino-5-oxo-5-phenylpentanoic acid (CAS 1595014-12-2)
- 7-Methoxy-3,4-dihydroquinoxalin-2(1H)-one (CAS 55687-29-1)
- ([D?]Val?·1?)-C-Peptide (human) (CAS 1802078-41-6)
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