4-Chloro-2-methoxypyridine CAS 72141-44-7
| CAS No. | 72141-44-7 |
| Molecular Formula | C6H6ClNO |
| Molecular Weight | 143.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-Chloro-2-methoxypyridine (CAS 72141-44-7), a certified reference material (molecular formula C6H6ClNO, MW 143.57 g/mol) for analytical method development and quality control.
The molecular framework of 4-Chloro-2-methoxypyridine (C6H6ClNO) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H6ClNO |
| Molecular Weight | 143.57 g/mol |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-6-methylpyridin-2-ol (CAS 103997-23-5)
- N-(3-Chloro-phenyl)hydroxylamine (CAS 10468-17-4)
- (5-Chloro pyrazin-2-yl) Methanamine (CAS 1060814-53-0)
- 4-Chloro-3-methylpyridine 1-Oxide (CAS 1073-34-3)
- 2-Chloro-3-hydrazinylpyridine (CAS 117087-45-3)
- 5-Chloro-2-methylpyridin-4(1H)-one (CAS 1196157-19-3)
- 2-Chloro-1-(1H-pyrrol-3-yl)ethanone (CAS 122450-28-6)
- 3-Chloro-2-methylpyridin-4-ol (CAS 1227499-23-1)
Recommended Standards
- 4-Chloro-2-hydrazinylpyridine (CAS 364757-36-8)
- 4-Chloro-2-methylpyridine 1-oxide (CAS 696-08-2)
- 4-Chloro-1-methylpyridin-2(1H)-one (CAS 53937-04-5)
- 4-Chloro-3-hydrazinylpyridine (CAS 478361-36-3)
- n,n-Diethylsulfamoyl fluoride (CAS 382-97-8)
- 2-Benzylidene-4-methyl-3-oxo-N-phenylpentanamide (CAS 125971-57-5)
- Methyl 2-(chloromethyl)-4-oxo-3,4-dihydroquinazoline-5-carboxylate (CAS 1140964-67-5)
- 1352881-33-4 2-Chloro-7-methylimidazo-[1,5-b]pyridazine (CAS 1352881-33-4)
- 2,3-Dihydro-1,3-dioxo-2-(2-propen-1-yl)-1H-isoindole-5-carboxylic acid (CAS 41441-42-3)
- N-Amidinoamidinosulfanilic acid (CAS 39604-29-0)
- 5-Amino-4-fluoro-2-methyl-N-propylbenzamide (CAS 1881414-75-0)
- Ethyl 1-ethyl-4-oxopiperidine-3-carboxylate hydrochloride (CAS 15637-51-1)
- 2-Methyl-N-(tetrahydrothiophen-3-yl)pyridin-3-amine (CAS 1504787-20-5)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
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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