1-Hydroxyethane-1-sulfonic acid CAS 20305-86-6
| CAS No. | 20305-86-6 |
| Molecular Formula | C2H6O4S |
| Molecular Weight | 126.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Hydroxyethane-1-sulfonic acid (CAS 20305-86-6), molecular formula C2H6O4S and molecular weight 126.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, an ether linkage, 1-Hydroxyethane-1-sulfonic acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 126.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Hydroxyethane-1-sulfonic acid 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 | C2H6O4S |
| Molecular Weight | 126.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Hydroxyethane Standards
- 2-hydroxyethane-1-sulfonyl fluoride (CAS 1893924-11-2)
- 2-hydroxyethane-1-sulfonyl chloride (CAS 78303-70-5)
- 3-[(2-Hydroxyethane)sulfonyl]acetic acid (CAS 75983-70-9)
- Propyl 2-Hydroxyethane-1-sulfonate (CAS CATO-C3D-263251)
- 3-[(2-Hydroxyethane)sulfonyl]propanoic acid (CAS 1122004-79-8)
- Potassium (1-hydroxyethane-1,1-diyl)bis(phosphonate) (CAS 14860-53-8)
- Potassium (1-hydroxyethane-1,1-diyl)bis(phosphonate)(x:1) (CAS 67953-76-8)
- Sodium (1-hydroxyethane-1,1-diyl)bis(phosphonate) (CAS 3794-83-0)
Recommended Standards
- 1,3-Diamino-2-fluorobenzene (CAS 52033-96-2)
- 2-(Aminomethyl)-3-fluoropyridine (CAS 312904-51-1)
- (Fluoromethoxy)benzene (CAS 87453-27-8)
- 2-(Aminomethyl)-5-fluoropyridine (CAS 561297-96-9)
- (R)-Methyl 2-(4-formyl-3-hydroxyphenyl)propanoate (CAS 1956435-11-2)
- 2-Amino-N-(3-ethoxypropyl)propanamidehydrochloride (CAS 1246172-61-1)
- (4-Fluorophenyl)(tetrahydrofuran-2-yl)methanamine (CAS 1016495-59-2)
- 4-(Difluoromethyl)-2-hydroxypyridine-3-sulfonyl chloride (CAS 1805277-44-4)
- 5-Butyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 107417-09-4)
- Methyl 6-bromo-2-chloronicotinate (CAS 1142192-03-7)
- 1,2-Dipalmitoyl-sn-glycero-3-phosphate (sodium salt) (CAS 169051-60-9)
- Iprodione des-(N-isopropylcarboxamid) (CAS 27387-87-7)
- N-benzyl-5-bromo-N-methylthiophene-2-sulfonamide (CAS 81597-62-8)
- Hexapeptide-9 (CAS 1228371-11-6)
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