5-(4-Chlorophenyl)-3-formylthiophene-2-carboxylic acid CAS 921592-97-4
| CAS No. | 921592-97-4 |
| Molecular Formula | C12H7ClO3S |
| Molecular Weight | 266.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(4-Chlorophenyl)-3-formylthiophene-2-carboxylic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-(4-Chlorophenyl)-3-formylthiophene-2-carboxylic acid (CAS 921592-97-4), a certified reference material (molecular formula C12H7ClO3S, MW 266.70 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H7ClO3S, 5-(4-Chlorophenyl)-3-formylthiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 266.70 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(4-Chlorophenyl)-3-formylthiophene-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H7ClO3S |
| Molecular Weight | 266.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
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- 7-Fluoro-1-methyl-5-(trifluoromethyl)-1H-indole-3-carbaldehyde (CAS 1695553-98-0)
- (S)-1-(thiophen-2-yl)prop-2-en-1-amine (CAS 1213006-61-1)
- Ethyl 4-(3-(4-chlorophenyl)propanoyl)benzoate (CAS 898787-76-3)
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- [D-Ser6]-Semaglutide (CAS CATO-C4X-2226287)
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