143234-92-8 2-Deoxy-2,2-difluoro-4,5-O-(1-methylethylidene)-D-threo-pentonic Acid Ethyl Ester Benzoate 2-Deoxy-2,2-difluoro-4,5-O-isopropylidene-D-threo-pentonic Acid Ethyl Ester Benzoate CAS 143234-92-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 143234-92-8 |
| Molecular Formula | C17H20F2O6 |
| Molecular Weight | 358.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
143234-92-8 2-Deoxy-2,2-difluoro-4,5-O-(1-methylethylidene)-D-threo-pentonic Acid Ethyl Ester Benzoate 2-Deoxy-2,2-difluoro-4,5-O-isopropylidene-D-threo-pentonic Acid Ethyl Ester Benzoate (CAS 143234-92-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H20F2O6. Molecular weight: 358.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H20F2O6 |
| Molecular Weight | 358.33 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
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Recommended Standards
- Gemcitabine impurity 22 (CAS 143234-90-6)
- 4-Ethynyl-1-((4-nitrophenyl)sulfonyl)-1,4-dihydro-2H-benzo[d][1,3]oxazin-2-one (CAS 2097770-05-1)
- N-benzyl-2-(pyridin-2-yl)-4-(trifluoromethyl)pyrimidine-5-carboxamide (CAS 865660-42-0)
- (S)-2-(5-Oxotetrahydrofuran-2-yl)acetic acid (CAS 66512-67-2)
- 2-methyl-2-(thiophen-2-yl)butanoic acid (CAS 1017783-11-7)
- 5-Bromo-4-methyl-3-pyridinecarboxamide (CAS 677702-08-8)
- Dodecahydrodibenzo[b,e][1,4]dioxine-4a,9a-diol (CAS 60308-50-1)
- 5-Hydroxy-7-methoxy-2-methylchroman-4-one (CAS 86361-56-0)
- 7-Amino-3-methoxyquinoxalin-2-ol (CAS 69904-12-7)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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