2-Chloro-7-methyl-1,8-naphthyridine CAS 1772-50-5
| CAS No. | 1772-50-5 |
| Molecular Formula | C9H7ClN2 |
| Molecular Weight | 178.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Chloro-7-methyl-1,8-naphthyridine (CAS 1772-50-5), molecular formula C9H7ClN2 and molecular weight 178.62 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Chloro-7-methyl-1,8-naphthyridine (C9H7ClN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1957 |
| 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
- 5-Chloro-2-methyl-1,8-naphthyridine (CAS 1772-45-8)
- 6-Chloro-2-cyclopropylnicotinonitrile (CAS 1774903-75-1)
- 2-Chloro-5-methoxy-3-methyltetrahydropyrimidin-4(1H)-one (CAS 1632285-99-4)
- 2-Chloroquinolin-7-amine (CAS 1782402-51-0)
- (S)-2-methoxy-2-phenylethan-1-amine (CAS 174472-00-5)
- 1,1,1,3-Tetrachlorodecane (CAS 51755-60-3)
- n-(4-Ethoxy-3-methoxyphenyl)isobutyramide (CAS 923238-08-8)
- 3-(Aminomethyl)-3-(o-tolyl)cyclobutan-1-ol (CAS 1480493-11-5)
- (4-Methyl-piperidin-4-yl)-4-methyl-piperazin-1-yl-methanone Dihydrochloride (CAS 1134741-37-9)
- Ethyl 2-amino-5-fluoro-3-methoxybenzoate (CAS 1248661-13-3)
- 1-(2-Bromopyridin-4-yl)cyclopropan-1-amine (CAS 1060811-37-1)
- 69C642I19V 3625-07-8 Mebolazine Mebolazine [INN] 17beta-Hydroxy-2alpha,17-dimethyl-5alpha-androstan-3-one azine 17-beta-hydroxy-2-alpha,17-dimethyl-5-alpha-androstan-3-one azine Mebolazina [DCIT] Mebolazinum [INN-Latin] Mebulazina [INN-Spanish] Mebolazina Mebolazinum Mebulazina UNII-69C642I19V Dimethazine Dimetazin Roxilon (CAS 3625-07-8)
- 4-(2-(Pyridin-4-yl)acetamido)cyclohexane-1-carboxylic acid (CAS 1183884-90-3)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com