1H-Imidazole-2-sulfonic acid CAS 53744-47-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 53744-47-1 |
| Molecular Formula | C3H4N2O3S |
| Molecular Weight | 148.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1H-Imidazole-2-sulfonic acid (CAS 53744-47-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C3H4N2O3S. Molecular weight: 148.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C3H4N2O3S |
| Molecular Weight | 148.14 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
- Imidazole-1-sulfonic Acid (CAS 21108-81-6)
- 1H-Imidazole-1-sulfonamide (CAS 1310797-69-3)
- 1H-imidazole-2-sulfonamide (CAS 875244-89-6)
- 1h-Imidazole-4-sulfonamide (CAS 58768-75-5)
- 1H-Imidazole-2-sulfonyl fluoride (CAS 1934502-26-7)
- 1H-Imidazole-4-carbodithioic acid (CAS 84824-76-0)
- 1h-imidazole,4,5-dihydro-2-phenyl- 2-Hydroxybenzene-1-carbohydrazide 2-Phenyl-2-imidazoline 2-phenyl-2-imidazolin 2-phenylimidazoline 4,5-dihydro-2-phenyl-1h-imidazol 4,5-dihydro-2-phenyl-1h-imidazole 936-49-2 Salicylic acid hydrazide labotest-bb lt00000058 pin (CAS 936-49-2)
- Imidazole Pyruvic acid (CAS 2504-83-8)
Recommended Standards
- 1,2,5-Thiadiazole-3,4-diamine 1,1-dioxide (CAS 55904-35-3)
- 1H-Pyrazole-4-sulfonic acid (CAS 438630-65-0)
- 5-fluoro-1-methyl-1H-imidazole-2-carboxylic acid (CAS 1956324-94-9)
- 5-(Piperidine-1-sulfonyl)-2,3-dihydro-1h-indole (CAS 874593-99-4)
- 1-Methoxy-4-(3-methoxyphenyl)isoquinolin-5-ol (CAS 656233-92-0)
- (3-Fluoro-4-propoxyphenyl)(methyl)sulfane (CAS 1443307-41-2)
- 3-(3-Nitrophenyl)imidazolidine-2,4-dione (CAS 62101-56-8)
- 5-methyl-6-(1H-pyrazol-1-yl)pyridine-3-carbaldehyde (CAS 1534458-55-3)
- 2-(4,5-Dimethyl-4h-1,2,4-triazol-3-yl)pentan-2-amine (CAS 1249867-49-9)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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