3-(5-Acetyl-2-thienyl)benzoic acid CAS 893735-30-3
| CAS No. | 893735-30-3 |
| Molecular Formula | C13H10O4S |
| Molecular Weight | 262.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(5-Acetyl-2-thienyl)benzoic acid (CAS 893735-30-3) is a high-purity analytical reference standard with the molecular formula C13H10O4S and a molecular weight of 262.28 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 3-(5-Acetyl-2-thienyl)benzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 262.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H10O4S |
| Molecular Weight | 262.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Acetyl Standards
- 3-Methyl-1-[4-(2-thienyl)-1,3-thiazol-2-yl]-1h-pyrazol-5-amine (CAS 1170887-99-6)
- 2-(2-Thienyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one 2-(thiophen-2-yl)-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one 5871-68-1 (CAS 5871-68-1)
- 3-{[(5-Methyl-2-thienyl)carbonyl]amino}-benzoic acid (CAS 905381-13-7)
- 4-{(2E)-2-[1-(2-Thienyl)ethylidene]-hydrazino}benzoic acid (CAS 385406-37-1)
- 7-(5-Methyl-2-thienyl)-7,8-dihydroquinoline-2,5(1H,6H)-dione (CAS 1428139-83-6)
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Recommended Standards
- 3-(2-((Difluoromethyl)thio)-4,6-dimethylpyrimidin-5-yl)propanoic acid (CAS 863668-50-2)
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- 2-Methyl-3-phenylquinoline-4-carboxylic acid (CAS 6319-87-5)
- 3,3-Dimethyl-2,4-dioxa-9-thiaspiro[5.5]undecane-1,5-dione 9,9-dioxide (CAS 64096-86-2)
- Thalidomide-PEG2-C2-NH2 (TFA) (CAS 2097509-36-7)
- Bis(1,1,1,3,3,3-hexafluoropropan-2-yl) carbonate (CAS 18925-66-1)
- 3-Amino-2-chlorobenzaldehyde (CAS 1071927-94-0)
- Methyl 8-bromo-4-chloroquinoline-2-carboxylate (CAS 1072944-68-3)
- 1-(4'-Methyl-[2,2'-bipyridin]-4-yl)propan-1-ol (CAS 114549-79-0)
- 6-(2-Isopropoxyethoxy)nicotinic acid (CAS 1016493-51-8)
- 2,4-Dibromo-1-(methoxymethoxy)benzene (CAS 21571-52-8)
- 3-Amino-8-chloroimidazo[1,2-a]pyridine (CAS 1427372-54-0)
- 4-Bromo-2-pyridinemethanol (CAS 131747-45-0)
- Neuropeptide FF (CAS 99566-27-5)
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