2-Chloro-6-iodo-3-pyridinol CAS 185220-68-2
| CAS No. | 185220-68-2 |
| Molecular Formula | C5H3ClINO |
| Molecular Weight | 255.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution, 2-Chloro-6-iodo-3-pyridinol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 255.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
2-Chloro-6-iodo-3-pyridinol (CAS 185220-68-2) is a high-purity analytical reference standard with the molecular formula C5H3ClINO and a molecular weight of 255.44 g/mol.
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.
CATO manufactures 2-Chloro-6-iodo-3-pyridinol 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 | C5H3ClINO |
| Molecular Weight | 255.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 2-Chloro-4-iodopyridin-3-ol (CAS 1207973-15-6)
- 6-Chloro-3-iodopyridin-2-ol (CAS 1224719-11-2)
- 2-Chloro-5-iodopyridin-4-ol (CAS 1226878-99-4)
- 2-Chloro-3-iodopyridin-4-ol (CAS 1226879-01-1)
- 3-Chloro-4-iodopyridin-2-ol (CAS 1227514-51-3)
- 3-Chloro-5-iodopyrazin-2-amine, 97% (CAS 1252597-70-8)
- 5-Chloro-4-iodopyrimidin-2-amine (CAS 1260863-63-5)
- 4-Chloro-5-iodopyridin-2-ol (CAS 1628557-08-3)
Recommended Standards
- 6-Chloro-3-iodopyrazin-2-amine (CAS 1823881-28-2)
- 5-Chloro-2-iodopyridin-3-ol (CAS 188057-16-1)
- 5-Chloro-3-iodopyrazin-2-amine (CAS 1823290-98-7)
- 6-Chloro-2-iodo-3-hydroxypyridine (CAS 188057-26-3)
- 2-oxo-1H,2H,3H,4H-pyrido[2,3-b]pyrazine-6-carboxylic acid (CAS 1803586-15-3)
- 1-(4-Bromobenzyl)piperidine-2-carboxylic acid (CAS 1024026-28-5)
- 1-Ethoxy-4,5-difluoro-2-iodobenzene (CAS 2090513-06-5)
- Y5-OD (CAS 2471624-58-3)
- tert-Butyl 6,6a,7,7a-tetrahydro-5H-cyclopropa[c][1,5]naphthyridine-5-carboxylate (CAS 2417969-64-1)
- Benzyl 4-((3-bromophenoxy)methyl)piperidine-1-carboxylate (CAS 2061979-51-7)
- 2-(2-Chloro-3-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1386860-54-3)
- 4-(3-Formyl-4-nitrophenoxy)butanoicacid (CAS 94193-36-9)
- 4-(1-Aminocyclobutyl)benzonitrile hydrochloride (CAS 1909305-75-4)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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