(3E)-2-Oxo-4-(thiophen-2-yl)but-3-enoic acid CAS 42393-10-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 42393-10-2 |
| Molecular Formula | C8H6O3S |
| Molecular Weight | 182.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3E)-2-Oxo-4-(thiophen-2-yl)but-3-enoic acid (CAS 42393-10-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H6O3S. Molecular weight: 182.20 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H6O3S |
| Molecular Weight | 182.20 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Sulfur Atoms | 1 |
Recommended Standards
- 6-(Methylsulfinyl)-7H-purine (CAS 19769-31-4)
- [3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]methanol (CAS 926226-84-8)
- 6-Hydroxybenzo[b]thiophene 1,1-dioxide (CAS 19163-43-0)
- 1231960-45-4 2708AD C8H15Cl2N3 [(5-Cyclopropyl-1H-pyrazol-3-yl)methyl]-methylamine dihydrochloride (CAS 1231960-45-4)
- 5-Methyl-2-nitropyridine (CAS 1074-38-0)
- 3-(2-Bromo-4-cyanophenyl)propanoic acid (CAS 1783615-81-5)
- 2-aminoquinoline-6-carbaldehyde (CAS 791626-61-4)
- 207131-40-6 3,5,9-Trioxa-4-phosphapentacosan-1-aminium, 4-hydroxy-N,N,N,12,16,20,24-heptamethyl-10-oxo-7-[(3,7,11,15-tetramethyl-1-oxohexadecyl)oxy]-, inner salt, 4-oxide, (7R)- (CAS 207131-40-6)
- 2,2-Dimethyl-3-(2-nitrophenyl)propan-1-amine (CAS 1485891-41-5)
- Insulin Degludec Impurity 17 (CAS CATO-C4X-215717)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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