3-chloro-2-hydroxypropanesulphonicacid CAS 107-57-3
| CAS No. | 107-57-3 |
| Molecular Formula | C3H7ClO4S |
| Molecular Weight | 174.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-chloro-2-hydroxypropanesulphonicacid (CAS 107-57-3), molecular formula C3H7ClO4S and molecular weight 174.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, an ether linkage, chlorine substitution, 3-chloro-2-hydroxypropanesulphonicacid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 174.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 3-chloro-2-hydroxypropanesulphonicacid 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 | C3H7ClO4S |
| Molecular Weight | 174.60 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 5-Chloro-4-{[(2,5-dichlorophenyl)sulfanyl]methyl}-1-methyl-3-phenyl-1H-pyrazole (CAS 956795-51-0)
- 3-((6-Amino-3-methyl-2,4-dioxo-1-phenyl-1,2,3,4-tetrahydropyrimidin-5-yl)carbamoyl)phenyl acetate (CAS 176379-35-4)
- Ethyl 2-chloro-6-cyanoisonicotinate (CAS 106719-07-7)
- Ethyl 3-(diethoxyphosphoryl)benzoate (CAS 26342-16-5)
- 4-CHOLESTEN-6α-OL-3-ONE (CAS 570-90-1)
- N-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)ethyl)thiophene-2-carboxamide (CAS 890601-75-9)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
Why CATO?
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