5,6-Dichloro-2-Iodopyridin-3-Ol CAS 188057-54-7
| CAS No. | 188057-54-7 |
| Molecular Formula | C5H2Cl2INO |
| Molecular Weight | 289.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,6-Dichloro-2-Iodopyridin-3-Ol is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5,6-Dichloro-2-Iodopyridin-3-Ol (CAS 188057-54-7), a certified reference material (molecular formula C5H2Cl2INO, MW 289.89 g/mol) for analytical method development and quality control.
Structurally, 5,6-Dichloro-2-Iodopyridin-3-Ol (C5H2Cl2INO) contains an amide group, a hydroxyl group, an ether linkage, chlorine/iodine 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 289.89 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H2Cl2INO |
| Molecular Weight | 289.89 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.) | 2010 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 4,6-Dichloro-5-iodopyrimidin-2-amine (CAS 1208108-99-9)
- 2,5-Dichloro-6-iodopyridin-3-ol (CAS 1261365-62-1)
- 3,5-Dichloro-6-iodopyrazin-2-amine (CAS 2883581-90-4)
- 5,6-Dichloro-3-iodopyrazin-2-amine (CAS 2089311-22-6)
- 3,4-Dichloro-2-nitrobenzofuran-5-yl acetate (CAS 50382-81-5)
- 3,4-Dichloro-2-nitrobenzofuran-7-yl acetate (CAS 50382-82-6)
- 3,5-Dichloro-2,6-difluoro-4-benzyloxypyridine (CAS 41662-64-0)
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Recommended Standards
- (buta-1,3-diyne-1,4-diylbis(4,1-phenylene))diboronicacid (CAS 1223038-68-3)
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- Pyrene-2,7-diyldiboronic acid (CAS 1099731-44-8)
- 4,6-Dibromopteridine (CAS 1260810-80-7)
- 4-Chloro-7-isopropoxy-6-nitroquinoline-3-carbonitrile (CAS 919482-03-4)
- 1-((4-Chloro-2,5-dimethylphenyl)sulfonyl)-2-ethyl-4-methyl-1H-imidazole (CAS 898656-21-8)
- Ethyl (2-chloroacetyl)(methyl)carbamate (CAS 6378-52-5)
- Palbociclib Impurity 88 (CAS 868591-58-6)
- 5-Boc-2-(methylthio)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidine (CAS 1246471-43-1)
- (3-Bromo-5-fluoro-2-methoxyphenyl)boronic acid (CAS 352525-85-0)
- Methyl (4-(pyrimidin-2-yl)piperazine-1-carbonyl)glycinate (CAS 1351695-67-4)
- Methyl 4-chloro-2-(pyridin-3-yl)pyrimidine-5-carboxylate (CAS 1283958-08-6)
- 2-(CHLOROMETHYL)PHENYLACETIC ACID (CAS 95335-46-9)
- Insulin Detemir (CAS 169148-63-4)
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