4-Bromo-5-(methylthio)furan-2-carboxylic acid CAS 1403566-69-7
| CAS No. | 1403566-69-7 |
| Molecular Formula | C6H5BrO3S |
| Molecular Weight | 237.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-5-(methylthio)furan-2-carboxylic acid (CAS 1403566-69-7) is a high-purity analytical reference standard with the molecular formula C6H5BrO3S and a molecular weight of 237.07 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 4-Bromo-5-(methylthio)furan-2-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures 4-Bromo-5-(methylthio)furan-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5BrO3S |
| Molecular Weight | 237.07 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- Ethyl 5-bromo-1,3,4-thiadiazole-2-carboxylate (CAS 1030613-07-0)
- 4-Bromo-3-methoxythiophene-2-carboxylic acid (CAS 110545-68-1)
- 2-Bromo-5-(methylsulfonyl)pyrazine (CAS 1177421-54-3)
- 1208538-52-6 4-broMo-2-MethanesulfonylpyriMidine 4-bromo-2-(methylsulfonyl)pyrimidine (CAS 1208538-52-6)
- 5-bromo-4-fluoro-3H-isobenzofuran-1-one (CAS 1255208-31-1)
- Ethyl 5-bromo-1,2,4-thiadiazole-3-carboxylate (CAS 1258268-97-1)
- Methyl 5-bromo-3-hydroxythiophene-2-carboxylate (CAS 130228-59-0)
- 4-Bromo-6-(methylsulfonyl)pyrimidine (CAS 1367905-95-0)
Recommended Standards
- 5-Bromo-3-(hydroxymethyl)thiophene-2-carboxylic acid (CAS 1374574-27-2)
- 5-Bromo-4-methoxythiophene-2-carboxylic acid (CAS 1423027-99-9)
- 5-Amino-2-bromo-thiazole-4-carboxylic acid methyl ester (CAS 1373223-08-5)
- 5-Bromo-4-methoxythiophene-3-carboxylic acid (CAS 162848-23-9)
- 1-[3-(tert-Butoxy)propyl]piperazine (CAS 1364914-08-8)
- (1R,4R)-2-Benzyl-2,5-diazabicyclo[2.2.1]heptane (CAS 777821-64-4)
- Decyl 4-hydroxybenzoate (CAS 69679-30-7)
- N-(2-(tert-Butoxy)-3-cyclopropoxypyridin-4-yl)methanesulfonamide (CAS 1243357-37-0)
- 1H-Pyrrolizin-7a(5H)-ol, 2-chloro-2,3-dihydro-5-imino-, monohydrochloride, (2S-trans)- (CAS 71743-75-4)
- 1-Cbz-azetidine-3-carboxylic Acid (CAS 97628-92-7)
- Voriconazole Impurity 28 (CAS 1307315-02-1)
- 3-(5-Amino-1,3,4-oxadiazol-2-yl)benzenesulfonamide (CAS 62036-00-4)
- 1,3-Dihydroxy-2-naphthoic acid (CAS 3147-58-8)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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