2-Chloro-5-methyl[1,6]naphthyridine CAS 140692-93-9
| CAS No. | 140692-93-9 |
| Molecular Formula | C9H7ClN2 |
| Molecular Weight | 178.62 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.
2-Chloro-5-methyl[1,6]naphthyridine (CAS 140692-93-9), molecular formula C9H7ClN2 and molecular weight 178.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H7ClN2, 2-Chloro-5-methyl[1,6]naphthyridine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H7ClN2 |
| Molecular Weight | 178.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 5-chloro-2-methyl-1,6-naphthyridine (CAS 1001754-84-2)
- 3-Chloro-6,7-dihydro-5H-cyclopenta[c]pyridine-4-carbonitrile (CAS 103589-67-9)
- 5-Chloro-1-phenyl-1H-imidazole (CAS 104672-26-6)
- 2-Chloro-3-methyl-1,5-naphthyridine (CAS 1049030-27-4)
- 6-Chloro-3-quinolinamine (CAS 1051372-60-1)
- 6-Chloro-4-methylquinazoline (CAS 1071752-93-6)
- 2-Chloro-3-methyl-1,7-naphthyridine (CAS 1105191-93-2)
- 5-Chloro-1-phenyl-1H-pyrazole (CAS 1127-84-0)
Recommended Standards
- 3-Chloroquinolin-8-amine (CAS 139399-66-9)
- 5-Chloroquinolin-3-amine (CAS 1416437-91-6)
- ethyl 3-chloro-1H-pyrazole-4-carboxylate (CAS 1393667-83-8)
- 1-(4-Chloropyridin-2-yl)cyclopropane-1-carbonitrile (CAS 1427012-83-6)
- 2-Chloro-3-(difluoromethyl)-7-methoxyquinoline (CAS 2091217-12-6)
- 4-(Dimethoxymethyl)-1,6,8-trimethylfuro[2,3-h]quinolin-2(1H)-one (CAS 828277-21-0)
- Ethyl 5-Amino-1,2,4-triazole-3-carboxylate (CAS 63666-11-5)
- 4,4′-[[4-(4-Pyridinyl)phenyl]imino]bis[benzoic acid] (CAS 1620819-71-7)
- 1-Cyclopentyl-5-methoxy-2-methyl-1h-indole-3-carboxylic acid (CAS 1181245-35-1)
- 4-(2-Methylthiazol-4-yl)butan-1-amine (CAS 325491-81-4)
- 2-Propenoic acid, 2-methylpropyl ester, polymer with ethenyl acetate (CAS 26591-44-6)
- (2Z)-2-cyano-3-[2,5-dimethyl-1-(1-naphthyl)-1H-pyrrol-3-yl]acrylic acid (CAS 743440-57-5)
- 4-(4-Methoxyphenyl)-5-methylpyrimidin-2-amine (CAS 61541-78-4)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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