2-Chloropyridine-3-sulfonic acid CAS 6602-56-8
| CAS No. | 6602-56-8 |
| Molecular Formula | C5H4ClNO3S |
| Molecular Weight | 193.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Chloropyridine-3-sulfonic acid (C5H4ClNO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 193.61 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Chloropyridine-3-sulfonic acid (CAS 6602-56-8) is a high-purity analytical reference standard with the molecular formula C5H4ClNO3S and a molecular weight of 193.61 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Chloropyridine-3-sulfonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4ClNO3S |
| Molecular Weight | 193.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloropyridine Standards
- 2-Chloropyridine-4-sulfonic acid (CAS 1209458-81-0)
- 6-Chloropyridine-2-sulfonic acid (CAS 133145-15-0)
- 6-Chloropyridine-3-sulfonic acid (CAS 17624-08-7)
- 4-Chloropyridine-3-sulfonic acid (CAS 51498-38-5)
- 5-Chloropyridine-3-sulfonamide (CAS 1334148-60-5)
- 6-chloropyridine-2-sulfonamide (CAS 1823272-65-6)
- 5-Chloropyridine-2-sulfonamide (CAS 19506-41-3)
- 3-Chloropyridine-2-sulfonamide (CAS 96009-29-9)
Recommended Standards
- 2-chloro-6-fluoro-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one (CAS 2306269-84-9)
- 5-chloropyrimidine-2-sulfonamide (CAS 873398-77-7)
- 2-chloro-5-fluoro-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one (CAS 2306277-55-2)
- 2-Aminopyrimidine-5-sulfonyl chloride (CAS 289484-00-0)
- 3-Chloro-5-(furan-2-yl)phenol (CAS 1261979-65-0)
- 2,2'-(9,9-Bis(6-bromohexyl)-9H -fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 851775-62-7)
- 6-(2,2,2-Trifluoroacetyl)pyridine-3-carbonitrile (CAS 1060804-08-1)
- n-(4-Amino-2-methylphenyl)propanamide hydrochloride (CAS 1173263-75-6)
- 2-((3,4-Dichlorophenyl)thio)-N-(4-methoxyphenyl)acetamide (CAS 339097-34-6)
- 3-(2,2-Difluoroethoxy)-1-isopropyl-4-nitro-1H-pyrazole (CAS 1429418-58-5)
- 2-Amino-N-(4-methyl-2-oxo-2H-chromen-7-yl)acetamide hydrochloride (CAS 208459-17-0)
- 6-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 160658-00-4)
- 3-Amino-5-bromo-4-methoxybenzoic acid (CAS 954818-70-3)
- Bradykinin-Like Neuropeptide (Aplysia californica) (H-1654.0001) (CAS 165174-60-7)
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