5-Chloro-3-methyl-2-(o-tolyl)pyridine CAS 2624417-46-3
| CAS No. | 2624417-46-3 |
| Molecular Formula | C13H12ClN |
| Molecular Weight | 217.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 217.69 g/mol gives 5-Chloro-3-methyl-2-(o-tolyl)pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Chloro-3-methyl-2-(o-tolyl)pyridine (CAS 2624417-46-3), molecular formula C13H12ClN and molecular weight 217.69 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 5-Chloro-3-methyl-2-(o-tolyl)pyridine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 217.69 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).
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 | C13H12ClN |
| Molecular Weight | 217.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 2'-Chloro-6'-methyl-[1,1'-biphenyl]-4-amine (CAS 1044210-29-8)
- 3-(2-Chloro-pyridin-3-yl)-acrylic acid ethyl ester (CAS 104830-08-2)
- methyl 6-chloro-1H-indole-4-carboxylate (CAS 1082040-57-0)
- 2-Chloro-1-(octahydro-4H-benzo[b][1,4]oxazin-4-yl)ethan-1-one (CAS 1184627-66-4)
- 3'-Chloro-6-methyl-[1,1'-biphenyl]-3-amine (CAS 1208087-52-8)
- 2-Chloro-4'-methyl-biphenyl-4-ylamine (CAS 1208087-74-4)
- 3'-Chloro-4-methyl-[1,1'-biphenyl]-3-amine (CAS 1225957-41-4)
- methyl 5-chloro-1H-indole-7-carboxylate (CAS 1238214-63-5)
Recommended Standards
- 5-chloro-1-methyl-1H-indole-2-carboxylic acid (CAS 59908-47-3)
- 5-Chloro-4-methyl-2-(o-tolyl)pyridine (CAS 2635937-69-6)
- 5-(Chloromethyl)-3-cyclohexyl-1,3-oxazolidin-2-one (CAS 26384-66-7)
- 5-phenyloxazole-4-carbonyl chloride (CAS 337508-64-2)
- 1,3,2-DIoxaborolane,?D-glucitol deriv. (CAS 74779-72-9)
- [(4-METHYLPHENYL)PHENYLMETHYL]PIPERAZINE (CAS 68240-63-1)
- 1-Cyclohexyl-N-ethylethan-1-amine (CAS 1158052-95-9)
- n-[1-(1-benzofuran-2-yl)ethyl]-2-chloropropanamide (CAS 1154010-39-5)
- 3-Amino-4-(tert-butyl)benzoic acid (CAS 196394-09-9)
- 2-({[(9H-fluoren-9-ylmethoxy)carbonyl]amino}methyl)-3-methylbutanoic acid (CAS 180181-98-0)
- Ethyl 3,3-difluoropropanoate (CAS 28781-80-8)
- 5-Bromo-3-methyl-1H-imidazo[4,5-b]pyridin-2(3H)-one (CAS 924293-37-8)
- Thioctic acid Impurity 6 (CAS 108841-56-1)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
Why CATO?
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