1-Methyl-4-tosyl-1H-imidazole-5-thiol CAS 81291-85-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 81291-85-2 |
| Molecular Formula | C11H12N2O2S2 |
| Molecular Weight | 268.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methyl-4-tosyl-1H-imidazole-5-thiol (CAS 81291-85-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H12N2O2S2. Molecular weight: 268.36 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H12N2O2S2 |
| Molecular Weight | 268.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 13-(4-Methylpentan-2-yl)-1,8,10-triazatricyclo[7.4.0.0^{2,7}]trideca-2(7),3,5,8,10,12-hexaen-11-amine (CAS 254106-41-7)
- 2-((6-Ethyl-2-methylthieno[2,3-d]pyrimidin-4-yl)thio)acetic acid (CAS 878709-05-8)
- 1-[(4-Isothiocyanatophenyl)sulfonyl]pyrrolidine (CAS 54286-50-9)
- 2-(Bromomethyl)-1-methyl-1H-imidazole hydrobromide (CAS 1864074-91-8)
- (R)-3-Amino-N-(1-phenylethyl)propanamide hydrochloride (CAS 2227842-29-5)
- 2-Oxo-4-(trifluoromethyl)-1,2-dihydropyridine-3-carboxamide (CAS 883011-18-5)
- Dimethyl 3-bromopyridine-2,6-dicarboxylate (CAS 316808-11-4)
- 7-bromo-2-(chloromethyl)pyrrolo[2,1-f][1,2,4]triazine (CAS 1368331-16-1)
- (S)-1-(3-chlorophenyl)pentan-1-amine (CAS 1213512-22-1)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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 13829788188 / jacky.chen@cato-chem.com