3-(Methylthio)thiophene CAS 20731-74-2
| CAS No. | 20731-74-2 |
| Molecular Formula | C5H6S2 |
| Molecular Weight | 130.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(Methylthio)thiophene is closely related to sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-(Methylthio)thiophene (CAS 20731-74-2), a certified reference material (molecular formula C5H6S2, MW 130.23 g/mol) for analytical method development and quality control.
The molecular framework of 3-(Methylthio)thiophene (C5H6S2) is characterized by sulfur-containing functionality. 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).
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.
As a certified reference material (CRM), 3-(Methylthio)thiophene 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 | C5H6S2 |
| Molecular Weight | 130.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 2 |
Related Methylthio Standards
- 2-(Methylthio)thiophene (CAS 5780-36-9)
- 1-Methyl-2-(methylthio)-4,5-dihydro-1H-imidazole (CAS 52839-23-3)
- 1-Methyl-5-(methylthio)tetrazole (CAS 68700-68-5)
- 5-((Methylthio)methyl)-2H-tetrazole (CAS 36855-39-7)
- (Methylthio)dichloromethane (CAS 2032-76-0)
- 3-(Methylthio)-1,2,4-oxadiazol-5-amine (CAS 55864-39-6)
- 2-(Methylthio)thiazole (CAS 5053-24-7)
- 5-(Methylthio)thiazole (CAS 40982-34-1)
Recommended Standards
- 2-Methylthiophene-3-thiol (CAS 2527-76-6)
- 3,3-Dimethyl-2-hexanol (CAS 22025-20-3)
- 2-Methylheptan-1-ol (CAS 60435-70-3)
- 3,4-Dimethylhexan-1-ol (CAS 66576-57-6)
- (2-(Dimethoxymethyl)-5-methoxyphenyl)methanol (CAS 149967-40-8)
- Methyl 3-(3,5-Difluorophenyl)-3-oxopropionate (CAS 1530834-98-0)
- Methyl 3-fluoro-5-(3-methoxyphenyl)benzoate (CAS 1820651-05-5)
- 4-Chloro-7-fluoro-2-(4-fluorophenyl)quinazoline (CAS 885277-44-1)
- 1,2-Bis(trifluoromethyl)-3,4-dichlorobenzene (CAS 1221272-78-1)
- tert-Butyl (Z)-pent-3-enoate (CAS 81643-00-7)
- Pyrazolo[1,5-b]pyridazine (CAS 35731-27-2)
- (1R,3R)-3-methyl-8-azaspiro[4.5]Decan-1-amine hydrochloride (CAS 2055760-55-7)
- (E)-1-(3-bromothiophen-2-yl)-3-(dimethylamino)prop-2-en-1-one (CAS 1422045-46-2)
- Glucagon-like peptide 2 (CAS 89750-15-2)
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