Sodium pyridine-4-sulfonate CAS 14156-63-9
| CAS No. | 14156-63-9 |
| Molecular Formula | C5H4NO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Sodium pyridine-4-sulfonate (CAS 14156-63-9), a certified reference material (molecular formula C5H4NO3SNa, MW 181.14 g/mol) for analytical method development and quality control.
Structurally, Sodium pyridine-4-sulfonate (C5H4NO3SNa) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 181.14 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Sodium pyridine-4-sulfonate 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 | C5H4NO3S Na |
| Molecular Weight | 181.14 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) | 4.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- 2,2'-(Pyridine-2,6-diyl)bis(propan-2-ol) (CAS 100055-21-8)
- 2-(Pyridine-4-carbonyl)cyclohexan-1-one (CAS 100192-17-4)
- Pyridine, 3,3'-[5',5''-bis[3-(3-pyridinyl)phenyl][1,1':3',1'':3'',1'''-quaterphenyl]-3,3'''-diyl]bis- (CAS 1009033-94-6)
- Pyridine-3-sulfinic acid (CAS 101084-77-9)
- Pyridine-4-sulfinic acid (CAS 101084-78-0)
- Pyridine-3,5-diyldiboronic acid (CAS 1012085-48-1)
- Pyridine, 2-chloro-3-methoxy-4-nitro-, 1-oxide (CAS 101664-57-7)
- Pyridine-3,4-diol (CAS 10182-48-6)
Recommended Standards
- 2-((6-Amino-9-butyl-9H-purin-8-yl)thio)acetic acid (CAS 1387574-01-7)
- (1,8-Naphthyridin-4-yl)boronic acid (CAS 2070001-89-5)
- (S)-2-(3,4-Dichlorophenyl)-2-methylpent-4-enoic acid (CAS 1563182-50-2)
- n-(4-Aminocyclohexyl)-2-chloropropanamide (CAS 1249304-24-2)
- 6-(Boc-amino)-3-pyridazinecarboxylic Acid (CAS 301548-08-3)
- 3-Chlorobenzene-1-sulfonamide (CAS 17260-71-8)
- 1-[(5-methyl-2-furyl)methyl]-1H-pyrazol-5-amine hydrochloride (CAS 1955505-95-9)
- Levosimendan Impurity 52 (CAS 110766-33-1)
- Nandrolone Decanoate EP Impurity B (CAS 1042947-85-2)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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