4-Ethoxy-3-(Ethoxycarbonyl)-4-oxobut-2-enoic acid CAS 431911-73-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 431911-73-8 |
| Molecular Formula | C9H12O6 |
| Molecular Weight | 216.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethoxy-3-(Ethoxycarbonyl)-4-oxobut-2-enoic acid (CAS 431911-73-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C9H12O6. Molecular weight: 216.19 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C9H12O6 |
| Molecular Weight | 216.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Ethoxy Standards
- 2-(3-Ethoxy-2,4-difluorophenyl)acetic acid (CAS 1017778-29-8)
- 2-(4-Ethoxy-3,5-difluorophenyl)acetic acid (CAS 1017779-13-3)
- 2-(4-Ethoxy-2,6-difluorophenyl)acetic acid (CAS 1017779-16-6)
- 2-(4-Ethoxy-2,3-difluorophenyl)acetic acid (CAS 1017779-62-2)
- 2-(2-Ethoxy-3,5-difluorophenyl)acetic acid (CAS 1017779-85-9)
- 2-(3-Ethoxy-2,6-difluorophenyl)acetic acid (CAS 1092461-32-9)
- Methyl 2-ethoxy-3,4-difluorobenzoate (CAS 2106724-69-8)
- Methyl 4-ethoxy-2,3-difluorobenzoate (CAS 293299-93-1)
Recommended Standards
- 4-Cyano-2-methyl-5-(1h-pyrrol-1-yl)furan-3-carboxylic acid (CAS 851116-60-4)
- 4-Formyl-3-hydroxy-2-naphthoic acid (CAS 38399-46-1)
- 4-benzoyl-1H-imidazole-5-carboxylic acid (CAS 313968-01-3)
- 2-(butan-2-yloxy)pyridine-4-carboxylic acid (CAS 1250383-83-5)
- 6-Bromo-4-(chloromethyl-d2)phthalazin-1(2H)-one (CAS 2629317-61-7)
- Leuprorelin Impurity 44 (CAS CATO-C4X-182244)
- 2-Methyl-1-tosyl-2,3-dihydroquinolin-4(1H)-one (CAS 30504-92-8)
- 3-Chloro-2-(3-methyl-1-piperidinyl)-5-(trifluoromethyl)pyridine (CAS 1220036-31-6)
- 4-Chloro-N,N-dimethylbenzimidamide (CAS 67095-84-5)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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