1-Chloro-6-methoxy-3,4-dihydronaphthalene-2-carbaldehyde CAS 72019-91-1
| CAS No. | 72019-91-1 |
| Molecular Formula | C12H11ClO2 |
| Molecular Weight | 222.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Chloro-6-methoxy-3,4-dihydronaphthalene-2-carbaldehyde (CAS 72019-91-1) is a high-purity analytical reference standard with the molecular formula C12H11ClO2 and a molecular weight of 222.67 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 1-Chloro-6-methoxy-3,4-dihydronaphthalene-2-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 222.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 1-Chloro-6-methoxy-3,4-dihydronaphthalene-2-carbaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H11ClO2 |
| Molecular Weight | 222.67 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 1-Chloro-2,4-dimethoxynaphthalene (CAS 26693-48-1)
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- 4-((3-Ethylphenoxy)methyl)piperidine (CAS 946758-67-4)
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- 2-(7,7-Dimethylbicyclo[2.2.1]heptan-1-yl)acetic acid (CAS 63805-63-0)
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- 0837AE 1-{4-[(2-Chloro-1,3-thiazol-5-yl)methoxy]phenyl}-1-ethanone 339104-75-5 C12H10ClNO2S (CAS 339104-75-5)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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