5-(Hydroxymethyl)thiophene-3-carboxylic acid CAS 25744-99-4
| CAS No. | 25744-99-4 |
| Molecular Formula | C6H6O3S |
| Molecular Weight | 158.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(Hydroxymethyl)thiophene-3-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.
5-(Hydroxymethyl)thiophene-3-carboxylic acid (CAS 25744-99-4), molecular formula C6H6O3S and molecular weight 158.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(Hydroxymethyl)thiophene-3-carboxylic acid (C6H6O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C6H6O3S |
| Molecular Weight | 158.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1964 |
| Sulfur Atoms | 1 |
Related Hydroxymethyl Standards
- 5-(Hydroxymethyl)thiophene-2-carboxylic acid (CAS 14282-64-5)
- 4-(Hydroxymethyl)thiophene-2-carboxylic acid (CAS 14282-65-6)
- 5-(Hydroxymethyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 93185-31-0)
- 6-(Hydroxymethyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 31555-11-0)
- Methyl 2-(3-(hydroxymethyl)cyclobutyl)acetate (CAS 1114554-24-3)
- Ethyl 1-(hydroxymethyl)cyclobutane-1-carboxylate (CAS 1195-81-9)
- 3-(Hydroxymethyl)cyclohexane-1-carboxylic acid (CAS 13380-83-1)
- 4-(Hydroxymethyl)cyclohexanecarboxylic Acid (cis- and trans- mixture) (CAS 13380-84-2)
Recommended Standards
- 5-(Mercaptomethyl)furan-2-carboxylic acid (CAS 88511-94-8)
- 4-Methyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 61320-82-9)
- 5-(Mercaptomethyl)pyrimidine-2,4(1H,3H)-dione (CAS 4874-36-6)
- 4-Methyl-3-nitrothiophen-2-amine (CAS 80313-10-6)
- 2-(4-Bromo-6-iodopyridin-2-yl)acetic acid (CAS 1393574-50-9)
- 2-(2-(Piperidin-1-yl)ethoxy)acetic acid (CAS 1527763-35-4)
- 1-(3-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)phenyl)ethan-1-one (CAS 1823183-82-9)
- 1,2-Dimethylindolizine (CAS 1125-77-5)
- 3,3’-Difluorobenzil (CAS 70028-89-6)
- 1417569-30-2 4-(4-Chlorophenyl)-2-hydrazinopyrimidine hydrochloride MFCD22421985 (CAS 1417569-30-2)
- 5-Amino-4-fluoro-2-methylbenzenethiol (CAS 885028-69-3)
- 5-Bromonaphthalene-1-carbonyl chloride (CAS 84532-82-1)
- 2-(3-(Difluoromethoxy)-2-nitrobenzoyl)pyridine (CAS 1261587-39-6)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
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