6-Chloropyridine-3-sulfinic acid CAS 99903-02-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 99903-02-3 |
| Molecular Formula | C5H4ClNO2S |
| Molecular Weight | 177.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloropyridine-3-sulfinic acid (CAS 99903-02-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C5H4ClNO2S. Molecular weight: 177.61 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C5H4ClNO2S |
| Molecular Weight | 177.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloropyridine Standards
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Recommended Standards
- 5-Chloro-3-methylisothiazole-4-carboxylic acid (CAS 22131-56-2)
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- cyclopentylhydrazine;dihydrochloride (CAS 645372-27-6)
- 6063-36-1 C24 Dihydroceramide (d18:0/24:0) C24 Sphinganine C24 dihydrosphingosine N-(tetracosanoyl)-sphinganine N-24:0 Sphinganine N-lignoceroyl-D-erythro-sphinganine (CAS 6063-36-1)
- Baricitinib Impurity 124 (CAS CATO-C4X-2260124)
- 6-Methyl-5-phenylpyridazin-3-amine (CAS 105537-98-2)
- 3-Propylpyrrolo[2,1-b]oxazol-2(3H)-one (CAS 220052-60-8)
- Tris(2-methoxyphenyl)bismuth dichloride (CAS 121899-81-8)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
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