Ethyl 4-chloro-1,5-naphthyridine-3-carboxylate CAS 83067-95-2
| CAS No. | 83067-95-2 |
| Molecular Formula | C11H9ClN2O2 |
| Molecular Weight | 236.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 4-chloro-1,5-naphthyridine-3-carboxylate (C11H9ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 236.65 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ethyl 4-chloro-1,5-naphthyridine-3-carboxylate (CAS 83067-95-2), molecular formula C11H9ClN2O2 and molecular weight 236.65 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Ethyl 4-chloro-1,5-naphthyridine-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H9ClN2O2 |
| Molecular Weight | 236.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; 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.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Ethyl 3-chloroquinoxaline-2-carboxylate (CAS 49679-45-0)
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- Ethyl 4-chloro-1,8-naphthyridine-3-carboxylate (CAS 944709-62-0)
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- Ethyl 2-amino-6-(propan-2-yl)-4h,5h,6h,7h-thieno[2,3-c]pyridine-3-carboxylate (CAS 74022-33-6)
- 3,5-Dimethyl-1-(3-methylbenzyl)-1h-pyrazol-4-amine (CAS 955964-94-0)
- 1-Benzyl-3-(phenylsulfonyl)pyrrolidine (CAS 101767-83-3)
- MM-22 (CAS 956605-71-3)
- 2-(Thiophen-2-yl(p-tolyl)amino)acetic acid (CAS 725253-13-4)
- 4-Hydroxy-6-methoxy-1,5-naphthyridin-2(1H)-one (CAS 959990-33-1)
- 4-Piperidinyl cyclopentanecarboxylate hydrochloride (CAS 1219948-62-5)
- Tert-butyl 2-(2-ethoxy-2-oxoethyl)-7-azaspiro[3.5]Nonane-7-carboxylate (CAS 203662-31-1)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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