4-Chloro-6-methylquinoline-3-carbaldehyde CAS 920494-41-3
| CAS No. | 920494-41-3 |
| Molecular Formula | C11H8ClNO |
| Molecular Weight | 205.64 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.
4-Chloro-6-methylquinoline-3-carbaldehyde (CAS 920494-41-3), molecular formula C11H8ClNO and molecular weight 205.64 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-6-methylquinoline-3-carbaldehyde (C11H8ClNO) 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 205.64 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C11H8ClNO |
| Molecular Weight | 205.64 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, DMSO |
| 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 4-chloropyrrolo[2,1-f][1,2,4]triazine-6-carboxylic acid (CAS 2306264-48-0)
- 2-(4-Iodopiperidin-1-yl)acetic acid (CAS 1353975-10-6)
- 3-(4-Fluoro-2-methoxyphenyl)azetidin-3-ol (CAS 1388075-27-1)
- 2-Chloro-N-(2-(3,4-dihydroquinolin-1(2h)-yl)ethyl)acetamide (CAS 1258640-65-1)
- 2-Chloro-N-piperidin-4-ylpyrimidin-4-amine hydrochloride (CAS 1208091-61-5)
- L-BalenineDiscontinued, see B115520 (CAS 331-38-4)
- (S)-1-(4-Methoxyphenyl)propan-2-ol (CAS 131029-01-1)
- 2-[1'-[(2-Methylpropan-2-yl)oxycarbonyl]spiro[3,4-dihydrochromene-2,4'-piperidine]-4-yl]acetic acid (CAS 952681-82-2)
- 4-(Trifluoromethyl)oxan-4-amine (CAS 1269151-37-2)
- Piritramide-d10 (1.0mg/ml in Acetonitrile) (CAS 1246815-72-4)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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