4-(5-Formyl-2-thienyl)benzoic acid CAS 174623-07-5
| CAS No. | 174623-07-5 |
| Molecular Formula | C12H18O3S |
| Molecular Weight | 242.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(5-Formyl-2-thienyl)benzoic acid (CAS 174623-07-5) is a high-purity analytical reference standard with the molecular formula C12H18O3S and a molecular weight of 242.33 g/mol.
Structurally, 4-(5-Formyl-2-thienyl)benzoic acid (C12H18O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 242.33 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H18O3S |
| Molecular Weight | 242.33 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Sulfur Atoms | 1 |
Related Formyl Standards
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Recommended Standards
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- 1-(6-Fluoro-3,4-dihydro-1,8-naphthyridin-1(2H)-yl)-2,2-dimethylpropan-1-one (CAS 1222533-74-5)
- (3R)-2,3-Dimethyl-4-(phenylsulfonyl)-2-butanol (CAS 93748-50-6)
- 1-Isobutyrylpiperidin-4-amine (CAS 172478-05-6)
- Methyl 2-amino-4-isopropylbenzoate (CAS 204850-17-9)
- 2-Chloro-11-((methylamino)methyl)dibenzo[b,f]oxepine-10-carboxylic acid (Hydrochloride) (CAS 1415564-75-8)
- 5-Methyl-2-(4-nitrophenyl)thiazole-4-carboxylic acid (CAS 1198280-31-7)
- 2',3',4',5',6'-Pentafluoro[1,1'-biphenyl]-3-carbonitrile (CAS 154343-99-4)
- (2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)((R)-3-hydroxypyrrolidin-1-yl)methanone (CAS 1354028-34-4)
- (2E)-2-(Benzenesulfonyl)-3-[4-(dimethylamino)phenyl]prop-2-enenitrile (CAS 141692-09-3)
- 4-Amino-2-chloro-N,N-diethylbenzamide (CAS 926231-58-5)
- N-Cyclohexyl-2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 736989-95-0)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
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