2-Hydroxypyridine-3-sulfonic acid CAS 6684-45-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 6684-45-3 |
| Molecular Formula | C5H5NO4S |
| Molecular Weight | 175.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Hydroxypyridine-3-sulfonic acid (CAS 6684-45-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H5NO4S. Molecular weight: 175.16 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H5NO4S |
| Molecular Weight | 175.16 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxypyridine Standards
- 5-Hydroxypyridine-2-sulfonic acid (CAS 139263-48-2)
- 3-Hydroxypyridine-2-sulfonic acid (CAS 88511-41-5)
- 6-Hydroxypyridine-3-sulfonic acid (CAS 6684-46-4)
- 3-Hydroxypyridine-4-sulfonamide (CAS 1076197-13-1)
- 5-Hydroxypyridine-2-sulfonamide (CAS 1243461-98-4)
- 3-hydroxypyridine-2-sulfonamide (CAS 145099-44-1)
- 2-hydroxypyridine-3-sulfonamide (CAS 1566403-08-4)
- 6-Hydroxypyridine-3-sulfonamide (CAS 89322-91-8)
Recommended Standards
- 2-Fluoroquinoline-3-carbaldehyde (CAS 224769-43-1)
- 2-Amino-6-fluoro-1H-indole-3-carbonitrile (CAS 378236-80-7)
- 4-Hydroxy-3-pyridinesulfonic Acid (CAS 51498-37-4)
- 1-(2,4-Dichlorophenyl)-2-(pyridin-3-yl)ethanone (CAS 83227-42-3)
- DL-Cysteine hydrochloride monohydrate (CAS 116797-51-4)
- 1-(2-Chloroethyl)-5-(2,4-dichlorophenyl)-1H-pyrazole (CAS 1710302-42-3)
- 2-(2,4-Dimethoxyphenyl)propanoic acid (CAS 1216065-29-0)
- 2-(2-aminoethyl)-1H-1,3-benzodiazole-5-carboxylic acid dihydrochloride (CAS 1187582-44-0)
- 3-(2-Chlorophenyl)-1-methylpyrrolidine (CAS 91131-01-0)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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