5-(Methylsulfanyl)thiophene-3-carboxylic acid CAS 88511-90-4
| CAS No. | 88511-90-4 |
| Molecular Formula | C6H6O2S2 |
| Molecular Weight | 174.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(Methylsulfanyl)thiophene-3-carboxylic acid (CAS 88511-90-4), molecular formula C6H6O2S2 and molecular weight 174.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H6O2S2, 5-(Methylsulfanyl)thiophene-3-carboxylic 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 174.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(Methylsulfanyl)thiophene-3-carboxylic 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.
Physical & Chemical Properties
| Molecular Formula | C6H6O2S2 |
| Molecular Weight | 174.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Sulfur Atoms | 2 |
Related Methylsulfanyl Standards
- 3-(methylsulfanyl)thiophene-2-carboxylic acid (CAS 60166-80-5)
- 6-(methylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 55084-74-7)
- [1-methyl-4-(methylsulfanyl)piperidin-4-yl]methanamine (CAS 1468992-03-1)
- [6-(methylsulfanyl)pyridin-3-yl]boronic acid (CAS 321438-86-2)
- 2-(methylsulfanyl)pyrrolo[2,1-f][1,2,4]triazine (CAS 1233093-58-7)
- 2-(methylsulfanyl)-5H-pyrrolo[3,2-d]pyrimidine (CAS 1392803-67-6)
- 5-[(methylsulfanyl)methyl]-1,3-thiazole-2-carbaldehyde (CAS 1820618-23-2)
- 5-(Methylsulfanyl)thiophene-2-carboxamide (CAS 83933-14-6)
Recommended Standards
- 5-(Aminomethylene)-3-methyl-2-thioxothiazolidin-4-one (CAS 73855-56-8)
- 5-(Methylthio)thiophene-2-carboxylic Acid (CAS 20873-58-9)
- 5-(2-methyl-1,3-dioxolan-2-yl)pentan-1-ol (CAS 36651-23-7)
- 5,5-Diethoxypentanal (CAS 79893-96-2)
- 2-(Bromomethyl)-4-(dimethoxymethyl)pyrimidine (CAS 1375065-66-9)
- Ethyl (3-nitrophenyl)carbamate (CAS 6275-72-5)
- 5-((6-Methylpyridin-3-yl)methyl)-2-(methylthio)pyrimidin-4(1H)-one (CAS 71351-50-3)
- 349-96-2 4-Nitrobenzenesulfonyl fluoride Benzenesulfonyl fluoride, 4-nitro- para-Nitrobenzenesulfonyl fluoride PNBSF (CAS 349-96-2)
- 6-Benzyl-5,6,7,8-tetrahydro-1,6-naphthyridin-3-ol (CAS 625098-87-5)
- 1-[(1-Methylethyl)amino]-3-[4-[[(1-methylethyl)imino]methyl]phenoxy]-2-propanol (CAS 29122-73-4)
- cis-Clomiphene Citrate (CAS 7619-53-6)
- N-Benzoyl-DL-methionine (CAS 99855-84-2)
- 2-(((2-Amino-5-nitrophenyl)imino)methyl)phenol (CAS 1455500-66-9)
- Ephrin-A2-Selective YSA-Peptide (CAS 532441-10-4)
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