Methylnaphthidate hydrochloride, threo, racemic CAS 219915-69-2
| CAS No. | 219915-69-2 |
| Molecular Formula | C18H21NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methylnaphthidate hydrochloride, threo, racemic.
Methylnaphthidate hydrochloride, threo, racemic (CAS 219915-69-2), molecular formula C18H21NO2HCl and molecular weight 319.83 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H21NO2HCl, Methylnaphthidate hydrochloride, threo, racemic contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 319.83 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H21NO2 HCl |
| Molecular Weight | 319.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Ethanamine, N,N-diethyl-, sulfate (2:1) (CAS 2399-73-7)
- 4,4'-(Ethane-1,2-diylbis(oxy))bis(4-oxobutanoic acid) (CAS 35415-14-6)
- (2R,3R,4R,5R)-5-((Benzoyloxy)Methyl)-2-(2,4-Dioxo-3,4-Dihydropyrimidin-1(2H)-Yl)-3-Ethynyltetrahydrofuran-3,4-Diyl Dibenzoate (CAS 1443997-55-4)
- 4-Methoxy-2-methylbenzenethiol (CAS 698-81-7)
- 9-hydroxy-4$l^{6}-thia-5-azatricyclo[4.2.1.0^{3,7}]nonane-4,4-dione (CAS 1453422-57-5)
- Ethyl 6-phenylimidazo[1,2-a]pyridine-2-carboxylate (CAS 1173694-01-3)
- Ethyl (S)-6-azaspiro[2.5]Octane-1-carboxylate (CAS 1539277-99-0)
- 3-(2-(4-Ethylphenyl)-2-oxoethyl)imidazolidine-2,4-dione (CAS 791134-29-7)
- 3-Amino-1-(4,5-dibromofuran-2-yl)-2-methylpropan-1-ol (CAS 1521346-03-1)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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