Ethyl 1-tosyl-1H-imidazole-4-carboxylate CAS 1133116-23-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1133116-23-0 |
| Molecular Formula | C13H14N2O4S |
| Molecular Weight | 294.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
Ethyl 1-tosyl-1H-imidazole-4-carboxylate (CAS 1133116-23-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H14N2O4S. Molecular weight: 294.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H14N2O4S |
| Molecular Weight | 294.33 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 1-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-methyl-1H-benzo[d]imidazole-5-carboxylic acid (CAS 1096908-36-9)
- 5-(N-Methylsulfamoyl)-N-(o-tolyl)furan-2-carboxamide (CAS 1147755-93-8)
- 3-Amino-4-hydroxy-n-(4-methoxyphenyl)benzenesulfonamide (CAS 109568-86-7)
- 8-Bromo-6-chlorochroman-4-one (CAS 890839-47-1)
- N-(2-bromo-4-methylphenyl)picolinamide (CAS 300382-62-1)
- (E)-[(3-Nitrophenyl)methylidene]amino N-phenylcarbamate (CAS 39089-86-6)
- 4-(4-methylphenyl)-3-(1H-pyrrol-1-yl)thiophene-2-carboxylic acid (CAS 1803608-58-3)
- 1-(Piperidin-4-yl)-2,3,4,5-tetrahydro-1H-benzo[b]azepine (CAS 1437486-43-5)
- 2-Propanone,1,1,1,3,3,3-hexabromo-
23162-64-3
CTK4F1011 (CAS 23162-64-3)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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