4-(thien-2-ylmethoxy)benzoic acid CAS 443345-85-5
| CAS No. | 443345-85-5 |
| Molecular Formula | C12H10O3S |
| Molecular Weight | 234.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(thien-2-ylmethoxy)benzoic 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.
CATO supplies 4-(thien-2-ylmethoxy)benzoic acid (CAS 443345-85-5), a certified reference material (molecular formula C12H10O3S, MW 234.27 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H10O3S, 4-(thien-2-ylmethoxy)benzoic acid contains 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 234.27 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).
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.
Physical & Chemical Properties
| Molecular Formula | C12H10O3S |
| Molecular Weight | 234.27 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related thien Standards
- 1-(Thien-2-ylsulfonyl)piperazine (CAS 565178-12-3)
- 4-(Thien-2-ylmethyl)benzoyl Chloride (CAS 1151512-19-4)
- 1-(thien-2-ylcarbonyl)piperidine-3-carboxylic acid (CAS 436093-08-2)
- 3-(2-oxo-5-thien-2-yl-1,3,4-oxadiazol-3(2H)-yl)propanoic acid (CAS 872107-94-3)
- 2-thien-3-ylquinazolin-4(3H)-one (CAS 923800-74-2)
- 3-methyl-2-[(thien-2-ylcarbonyl)amino]butanoic acid (CAS 854007-21-9)
- 1-methyl-2-thien-2-yl-1H-indole-3-carbaldehyde (CAS 903162-53-8)
- 1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride (CAS 876316-46-0)
Recommended Standards
- 4-(Methylsulfonyl)-1-naphthaldehyde (CAS 282728-19-2)
- 4-[(4-methyl-1,3-thiazol-2-yl)amino]benzoic acid (CAS 33942-54-0)
- 4-(Benzo[d][1,3]dioxol-5-yl)-5-methylthiazol-2-amine (CAS 850852-86-7)
- 4-Amino-3-(p-tolyl)isothiazole-5-carboxylic acid (CAS 82424-87-1)
- 2-(3-((Benzyloxy)methyl)isoxazol-5-yl)acetic acid (CAS 2755762-58-2)
- Tretinoin Potassium salt (CAS 22232-80-0)
- N1-methyl-2-phenylethane-1,2-diamine (CAS 61337-91-5)
- 4-Hydrazinyl-N-(pyrimidin-2-yl)benzenesulfonamide (CAS 68774-07-2)
- 1-Methyl-N-neopentyl-1h-pyrazol-4-amine (CAS 1250380-67-6)
- Benzyl 3-(hydrazinylmethyl)azetidine-1-carboxylate (CAS 1936148-67-2)
- 3-(3-Methyl-2-phenyl-indol-1-yl)-propionic acid (CAS 1171934-74-9)
- 4-Amino-2-hydroxynicotinonitrile (CAS 1804870-72-1)
- 2-(3-FLUOROPHENYL)-3-OXO-3-(PYRIDIN-3-YL)PROPANENITRILE (CAS 1096975-24-4)
- D-Pro31-Tirzepatide (CAS CATO-CPTD788905)
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