3-Methylthiophen-2-amine oxalate CAS 1956324-23-4
| CAS No. | 1956324-23-4 |
| Molecular Formula | C5H7NS |
| Molecular Weight | N/A |
| 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-Methylthiophen-2-amine oxalate (CAS 1956324-23-4) is a high-purity analytical reference standard with the molecular formula C5H7NSC2H2O4 and a molecular weight of 203.21 g/mol.
The molecular framework of 3-Methylthiophen-2-amine oxalate (C5H7NSC2H2O4) is characterized by an amide group, 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 protonation state of its nitrogen-containing 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).
As a certified reference material (CRM), 3-Methylthiophen-2-amine oxalate 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 | C5H7NS C2H2O4 |
| Molecular Weight | 203.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylthiophen Standards
- 3-(5-Methylthiophen-2-yl)propan-1-amine (CAS 1000530-84-6)
- 1-(2-Methylthiophen-3-yl)propan-1-one (CAS 100207-46-3)
- 2-(4-Methylthiophen-2-yl)acetic acid (CAS 1005-54-5)
- 1-[(5-methylthiophen-2-yl)sulfonyl]pyrrolidine-2-carboxylic acid (CAS 1008281-37-5)
- 1-((5-Methylthiophen-2-yl)sulfonyl)piperidine-2-carboxylic acid (CAS 1008703-84-1)
- (1-(5-Methylthiophen-2-yl)ethyl)hydrazine (CAS 1016511-14-0)
- 5-(5-Methylthiophen-2-yl)-4h-1,2,4-triazol-3-amine (CAS 1016671-83-2)
- n-(1-(5-Methylthiophen-2-yl)ethyl)cyclopropanamine (CAS 1016704-84-9)
Recommended Standards
- 3-Iodo-1H-pyrrolo[2,3-c]pyridine-4-carbonitrile (CAS 1190310-26-9)
- 6-Methyl-6-azaspiro[2.5]octane-1-carboxylic acid (CAS 1545135-41-8)
- Cyclopropanecarbonyl isothiocyanate (CAS 171058-80-3)
- 3-(5-(4-Bromophenyl)furan-2-yl)-N-(4-methoxybenzyl)propanamide (CAS 853331-12-1)
- 2-amino-4-(propan-2-yloxy)butanenitrile hydrochloride (CAS 1803592-40-6)
- 3-(2,3-Dihydrobenzofuran-5-yl)-3-hydroxypropanoic acid (CAS 1247091-47-9)
- 3-Chloro-N-(3-methoxypropyl)benzamide (CAS 312924-62-2)
- 3-(Bromomethyl)cyclobutanone (CAS 463961-43-5)
- 2-(propan-2-yl)-2H,3H,5H,6H,7H,8H-pyrido[4,3-c]pyridazin-3-one (CAS 1376278-48-6)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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