Pyridine-2,6-disulfonic acid CAS 89949-06-4
| CAS No. | 89949-06-4 |
| Molecular Formula | C5H5NO6S2 |
| Molecular Weight | 239.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Pyridine-2,6-disulfonic 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.
Pyridine-2,6-disulfonic acid (CAS 89949-06-4), molecular formula C5H5NO6S2 and molecular weight 239.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Pyridine-2,6-disulfonic acid (C5H5NO6S2) contains a carbohydrate-derived structure, an amide group, a sulfone group. 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 239.23 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.
Physical & Chemical Properties
| Molecular Formula | C5H5NO6S2 |
| Molecular Weight | 239.23 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.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Pyridine Standards
- Pyridine-2,5-disulfonicacid (CAS 17624-04-3)
- Pyridine-2,3-disulfonic acid (CAS 6602-53-5)
- 1-(Pyridine-3-carbonyl)-2,3-dihydro-1h-indol-5-amine (CAS 927996-80-3)
- 2-Pyridine Selenyl Bromide (CAS 91491-61-1)
- Pyridine, 3-bromo-5-(cyclopentyloxy)- (CAS 422557-08-2)
- 2-[(Pyridine-3-carbonyl)-amino]-benzoic acid (CAS 6188-02-9)
- 4-(Pyridine-2-amido)benzoic acid (CAS 5693-36-7)
- 4-(Pyridine-4-amido)benzoic acid (CAS 5651-66-1)
Recommended Standards
- Sapropterin (CAS 62989-33-7)
- Phenyl 1H-benzo[d][1,2,3]triazole-5-carboxylate (CAS 84902-17-0)
- Tert-butyl (2,4,4-trifluorocyclopentyl)carbamate (CAS 2227205-41-4)
- N1-(Isoxazol-3-yl)-N2-((tetrahydrofuran-2-yl)methyl)oxalamide (CAS 899978-27-9)
- 1-methyl-1,3-dihydro-2$l^{6},1,3-benzothiadiazole-2,2-dione (CAS 443987-59-5)
- N-Nitroso Hydroxychloroquine (CAS CATO-C4X-183563)
- 4-methoxy-1,6-naphthyridine (CAS 5268-40-6)
- 8-((Dimethylamino)methyl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione (CAS 868143-58-2)
- 3-(5-Chloro-1,3-dimethyl-1H-pyrazol-4-yl)acrylic acid (CAS 683274-68-2)
- Tert-butyl 4-((4-bromobenzyl)amino)piperidine-1-carboxylate (CAS 846605-66-1)
- 2-(Aminomethyl)-3-(difluoromethyl)-4-methylpyridine-5-carboxaldehyde (CAS 1805610-67-6)
- 2-Hydroxy-5-methylbenzohydrazide (CAS 28397-43-5)
- 1-(Difluoromethoxy)-3,5-bis(trifluoromethyl)benzene (CAS 745030-84-6)
- Liraglutide Impurity 20 TFA Salt (CAS CATO-C4X-199220)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com