4-Amino-3-chloropyridin-2-ol CAS 55290-73-8
| CAS No. | 55290-73-8 |
| Molecular Formula | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Amino-3-chloropyridin-2-ol is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Amino-3-chloropyridin-2-ol (CAS 55290-73-8), molecular formula C5H5ClN2O and molecular weight 144.56 g/mol, is a CATO reference standard with documented purity and traceability.
4-Amino-3-chloropyridin-2-ol (C5H5ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 4-Amino-3-chloropyridin-2-ol 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 | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 2-Amino-4-chloro-3-hydroxypyridine (CAS 1003710-73-3)
- 2-amino-5-chloropyridin-4-ol (CAS 1121585-12-3)
- 3-Amino-4-chloropyridin-2(1H)-one (CAS 1198154-61-8)
- 5-Amino-6-chloropyridin-3-ol (CAS 1211537-54-0)
- 4-Amino-2-chloropyridin-3-ol (CAS 1227508-94-2)
- 5-Amino-6-chloropyridin-2-ol (CAS 1227581-42-1)
- 4-Amino-6-chloropyridin-2(1H)-one (CAS 1227600-15-8)
- 3-Amino-2-chloropyridin-4-ol (CAS 1242251-52-0)
Recommended Standards
- 4-AMino-2-chloropyridin-1-ium-1-olate (CAS 802844-83-3)
- 4-Chloro-1-methyl-1h-pyrazole-5-carbaldehyde (CAS 902837-61-0)
- 4,5-Diamino-6-chloropyrimidine (CAS 4316-98-7)
- 4-Chloro-2-methylpyridazin-3(2H)-one (CAS 69207-44-9)
- 6,8-Dichloro-2-(chloromethyl)-3-(2,6-dimethylphenyl)quinazolin-4(3H)-one (CAS 338957-44-1)
- Tert-butyl 3-(furan-2-yl)-3-oxopropanoate (CAS 170115-18-1)
- 3-amino-1-(4-chlorophenyl)pyrrolidin-2-one (CAS 5301-33-7)
- Betahistine Impurity 12 (CAS 109-06-8)
- (2-Fluoro-4-((4-methylpiperidin-1-yl)methyl)phenyl)boronic acid (CAS 1704064-21-0)
- 2-(Cyclopropylamino)-2-methyl-3-(5-methyl-1h-pyrazol-1-yl)propanamide (CAS 1341817-07-9)
- N-Benzyl L-Z-isoleucinamide (CAS 134015-91-1)
- 2-(3-(Azetidin-3-yl)phenyl)acetic acid (CAS 1260839-77-7)
- 3-(Methoxymethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 858117-07-4)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
Why CATO?
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