3-Methoxy-4-methylthiophene CAS 72344-31-1
| CAS No. | 72344-31-1 |
| Molecular Formula | C6H8OS |
| Molecular Weight | 128.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Methoxy-4-methylthiophene (CAS 72344-31-1) is a high-purity analytical reference standard with the molecular formula C6H8OS and a molecular weight of 128.19 g/mol.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-Methoxy-4-methylthiophene is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 128.19 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 3-Methoxy-4-methylthiophene 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 | C6H8OS |
| Molecular Weight | 128.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1977 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 2-Methoxy-3-methylthiophene (CAS 33687-87-5)
- 3-Methoxy-2-methylthiophene (CAS 53119-55-4)
- 2-Methoxy-1-(1-methylcyclopropyl)ethan-1-one (CAS 1507500-71-1)
- (E)-1-Methoxy-2-methylpent-1-en-3-one (CAS 56279-35-7)
- 1-methoxy-3-methylcyclohexane (CAS 52204-64-5)
- 1-MEthoxy-4-methylcyclohexane (CAS 90200-72-9)
- 1-Methoxy-4-methylpent-1-en-3-one (CAS 41850-86-6)
- 3-Methoxy-2,2-dimethylcyclobutan-1-one (CAS 2063-96-9)
Recommended Standards
- 4-Methyl-2-(methylthio)furan (CAS 84735-62-6)
- 4-Methylthiophene 2-ylmethanol (CAS 74395-18-9)
- 2-Ethoxythiophene (CAS 36448-24-5)
- 5,6-Dihydro-2h-thiopyran-3-carbaldehyde (CAS 30058-79-8)
- 1-(17-Hydroxy-3,6,9,12,15-pentaoxaheptadecyl)-1H-pyrrole-2,5-dione (CAS 1584544-42-2)
- Clenproperol (CAS 38339-11-6)
- Methyl (S)-2,2-dimethyl-3-(oxiran-2-yl)propanoate (CAS 2055539-61-0)
- (4R,12aS)-7-Bromo-3,4,6,8,12,12a-hexahydro-4-methyl-6,8-dioxo-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylic Acid Ethyl Ester (CAS 1246616-78-3)
- 6-Amino-3-fluoropicolinaldehyde (CAS 1289033-30-2)
- CP-96345 (CAS 132746-60-2)
- 2-(Cyclohexyloxy)-1-fluoro-3-nitrobenzene (CAS 1233955-80-0)
- 2-(2-Bromophenyl)-1-(4-methoxyphenyl)ethanone (CAS 655244-07-8)
- 6,6-dimethoxy-2,2-dimethylhexan-1-amine (CAS 1803610-20-9)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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