4-Bromo-3-methyl-5-phenylthiophene-2-carboxylic acid CAS 40331-48-4
| CAS No. | 40331-48-4 |
| Molecular Formula | C12H9BrO2S |
| Molecular Weight | 297.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 4-Bromo-3-methyl-5-phenylthiophene-2-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 297.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-Bromo-3-methyl-5-phenylthiophene-2-carboxylic acid (CAS 40331-48-4) is a high-purity analytical reference standard with the molecular formula C12H9BrO2S and a molecular weight of 297.17 g/mol.
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), 4-Bromo-3-methyl-5-phenylthiophene-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 | C12H9BrO2S |
| Molecular Weight | 297.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-2-phenyl-N-(1,3-thiazol-2-yl)acetamide (CAS 102862-35-1)
- 1-Bromo-3-(phenylsulfonyl)benzene (CAS 114660-03-6)
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- 5-Bromo-N-(2-Methylpyridin-4-Yl)Thiophene-2-Carboxamide (CAS 1468774-80-2)
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Recommended Standards
- 4-[6-(bromomethyl)-5h,6h-[1,2,4]triazolo[3,4-b][1,3]thiazol-3-yl]pyridine (CAS 848207-44-3)
- 4-Bromo-5-[(4-methylphenyl)sulfanyl]-2-furaldehyde (CAS 597545-05-6)
- 3-Bromo-N-(4-methylthiazol-2-yl)benzamide (CAS 377066-38-1)
- 4-Bromo-5-methyl-3-phenylthiophene-2-carboxylic acid (CAS 40196-67-6)
- tert-Butyl 5-(hydroxymethyl)-2-methoxybenzoate (CAS 2924465-58-5)
- 478039-81-5 6-methyl[1,2,4]triazolo[4,3-b]pyridazin-8-yl 3-(trifluoromethyl)benzenecarboxylate KS-00001VRV (CAS 478039-81-5)
- N-(5,6-Dimethoxybenzo[d]thiazol-2-yl)-3-phenylpropanamide (CAS 895441-98-2)
- 4-Amino-N-(4-carbamoylphenyl)benzamide (CAS 74441-06-8)
- 2-(4-Bromobenzenesulfonyl)-2-methylpropanenitrile (CAS 1178187-96-6)
- Levocarnitine Impurity 41 (CAS CATO-C4X-129241)
- 2-(2-Isobutoxyphenyl)-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 63874-69-1)
- 4-((1H-Benzo[d]imidazol-2-yl)methyl)piperazine-1-carbaldehyde (CAS 95893-92-8)
- N-carbamimidoyl-N-methylglycine compound with 2-oxopropanoic acid (1:1) (CAS 55965-97-4)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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