138084-66-9 5-Amino-2-chloropyridin-4(1H)-one DTXSID00663816 CAS 138084-66-9
| CAS No. | 138084-66-9 |
| Molecular Formula | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 138084-66-9 5-Amino-2-chloropyridin-4(1H)-one DTXSID00663816 (CAS 138084-66-9), a certified reference material (molecular formula C5H5ClN2O, MW 144.56 g/mol) for analytical method development and quality control.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 138084-66-9 5-Amino-2-chloropyridin-4(1H)-one DTXSID00663816 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.56 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | 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.) | 1996 |
| 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-6-chloropyridin-3-ol (CAS 138084-65-8)
- 3-Chloro-5-methyl-1H-pyrazole-4-carbaldehyde (CAS 139157-40-7)
- 5-Amino-2-chloropyridin-3-ol (CAS 1367944-42-0)
- 6-amino-2-chloropyridin-3-ol (CAS 1393539-20-2)
- 5-(2-Pyrrolyl)isoxazole-3-carboxylic Acid (CAS 1378833-82-9)
- 6,6-Dimethyl-9-phenyl-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one (CAS 421586-21-2)
- N-methyl-N-(1-methylpyrrolidin-3-yl)glycine (CAS 1353977-10-2)
- 2-Propenoic acid, polymer with 1,3-butadiene and ethenylbenzene, ammonium salt (CAS 52383-49-0)
- 4-(1,1-Bis(4-chlorophenyl)but-3-yn-1-yl)-4H-1,2,4-triazole (CAS 88557-73-7)
- (E)-5-Chloropent-4-enamide (CAS 88981-60-6)
- 1-(3-Aminopiperidin-1-yl)-2-phenoxyethan-1-one hydrochloride (CAS 1836988-97-6)
- 6-(2,4-Difluorophenyl)picolinic acid (CAS 887983-05-3)
- 4-Bromo-2-chloro-1-(methoxymethyl)benzene (CAS 1602920-29-5)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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