3-(Benzyloxy)-5-methoxythiophene-2-carboxylic acid CAS 1774902-33-8
| CAS No. | 1774902-33-8 |
| Molecular Formula | C13H12O4S |
| Molecular Weight | 264.30 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.
3-(Benzyloxy)-5-methoxythiophene-2-carboxylic acid (CAS 1774902-33-8) is a high-purity analytical reference standard with the molecular formula C13H12O4S and a molecular weight of 264.30 g/mol.
3-(Benzyloxy)-5-methoxythiophene-2-carboxylic acid (C13H12O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H12O4S |
| Molecular Weight | 264.30 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.) | 1994 |
| Sulfur Atoms | 1 |
Related Benzyloxy Standards
- 5-(Benzyloxy)-2-methanesulfonylpyrimidine (CAS 16290-89-4)
- 4-(Benzyloxy)benzenesulfonic acid (CAS 5950-16-3)
- Ethyl 6-(benzyloxy)-3-oxohexanoate (CAS 10378-08-2)
- 8-(Benzyloxy)-8-oxooctanoic acid (CAS 15570-39-5)
- (4-Benzyloxy-naphthalen-2-yl)-methanol (CAS 188863-65-2)
- (2-(Benzyloxy)naphthalen-1-yl)methanol (CAS 217176-35-7)
- (R)-1-((Benzyloxy)carbonyl)piperazine-2-carboxylic acid (CAS 1139878-81-1)
- (S)-1-((Benzyloxy)carbonyl)piperazine-2-carboxylic acid (CAS 1217437-93-8)
Recommended Standards
- 5-(Ethylsulfonyl)-6-phenylpyridazin-3(2H)-one (CAS 1713174-37-8)
- Ethyl 4-((4-oxo-4,5-dihydrothiazol-2-yl)amino)benzoate (CAS 17823-28-8)
- 4-(4-Aminophenyl)-5-(methylsulfonyl)pyrimidin-2-amine (CAS 1708445-09-3)
- 1-(1-(Thiophene-3-carbonyl)azetidin-3-yl)pyrrolidine-2,5-dione (CAS 1798638-87-5)
- 4-Amino-7H-pyrrolo[2,3-d]pyrimidine-2-sulfinic acid (CAS 1027082-25-2)
- (R)-1-(2-Bromophenyl)ethanamine hydrochloride (CAS 1187931-17-4)
- 5,6,7,8-Tetrahydroimidazo[1,2-a]pyridin-6-ol (CAS 1100750-16-0)
- 3-((3-Chlorobenzyl)thio)-4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazole (CAS 618413-51-7)
- 1-Phenyl-3-(4-(trifluoromethyl)phenyl)thiourea (CAS 354773-60-7)
- Upadacitinib Impurity 59 (CAS 2411540-28-6)
- 2-(3-Bromo-4-methylphenoxy)ethan-1-ol (CAS 1851181-29-7)
- Ethyl 4-amino-5-fluoro-8-methylquinoline-3-carboxylate (CAS 1315370-43-4)
- 4,4-Dimethylcyclohexane-1-sulfonamide (CAS 1341720-23-7)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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