2-Acetyl-4-nitrothiophene CAS 42791-51-5
| CAS No. | 42791-51-5 |
| Molecular Formula | C6H5NO3S |
| Molecular Weight | 171.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
2-Acetyl-4-nitrothiophene (CAS 42791-51-5) is a high-purity analytical reference standard with the molecular formula C6H5NO3S and a molecular weight of 171.17 g/mol.
Based on its molecular formula C6H5NO3S, 2-Acetyl-4-nitrothiophene contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 2-Acetyl-4-nitrothiophene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5NO3S |
| Molecular Weight | 171.17 g/mol |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Acetyl Standards
- 2-Acetyl-5-nitrothiophene (CAS 39565-00-9)
- 3-Nitrothiophene-2-carboxamide (CAS 391680-93-6)
- 4-nitrothiophene-2-carboxamide (CAS 36050-08-5)
- 5-Nitrothiophene-2-carboxamide (CAS 5832-00-8)
- 5-Nitrothiophene-3-carboxamide (CAS 36050-09-6)
- 2-Nitrothiophene-3-carboxylic acid (CAS 100114-16-7)
- 3-Nitrothiophene-2-carboxylic acid (CAS 89283-80-7)
- 5-Nitrothiophene-3-carboxylic Acid (CAS 40357-96-8)
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- 2,3-Difluorophenyl Isothiocyanate (CAS 363179-57-1)
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- Chlorhexidine EP Impurity A (CAS 152504-08-0)
- 4-Chloro-6-(difluoromethyl)-5-fluoronicotinaldehyde (CAS 1804665-37-9)
- 2-(2-(Trifluoromethyl)pyridin-4-yl)propanoic acid (CAS 1852354-01-8)
- 6229-00-1 (Triphenylsilyl)acetylene DTXSID60349043 (CAS 6229-00-1)
- (2E)-3-[6-(4-Bromophenyl)imidazo[2,1-b][1,3]thiazol-5-yl]-1-(2-fluorophenyl)prop-2-en-1-one (CAS 691887-89-5)
- FLAG Epitope Peptide (CAS 98849-88-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com