5-Chloro-3-ethoxy-2-hydroxybenzaldehyde CAS 532944-74-4
| CAS No. | 532944-74-4 |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-3-ethoxy-2-hydroxybenzaldehyde is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Chloro-3-ethoxy-2-hydroxybenzaldehyde (CAS 532944-74-4) is a high-purity analytical reference standard with the molecular formula C9H9ClO3 and a molecular weight of 200.62 g/mol.
Structurally, 5-Chloro-3-ethoxy-2-hydroxybenzaldehyde (C9H9ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 200.62 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.
CATO manufactures 5-Chloro-3-ethoxy-2-hydroxybenzaldehyde 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 | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(4-Chloro-3-cyclopropyl-1H-pyrazol-1-yl)acetic acid (CAS 1006319-36-3)
- 5-Chloro-6-(ethylamino)pyridine-3-carboxylic acid (CAS 1019461-54-1)
- 2-Chloro-6-ethoxybenzoic acid (CAS 1020998-62-2)
- Methyl 2-Chloro-5-(Methylamino)Isonicotinate (CAS 1034131-90-2)
- Methyl 2-chloro-4-methoxybenzoate (CAS 104253-45-4)
- 1-(3-Chloro-2-hydroxy-5-(hydroxymethyl)phenyl)ethanone (CAS 109201-11-8)
- 6- Chloro- 2- ethylaminonicotinic Acid (CAS 1092523-21-1)
- 5-chloro-4-methoxy-2-methylbenzoic acid (CAS 109803-47-6)
Recommended Standards
- 5-Chloro-2-methoxybenzohydrazide (CAS 33977-11-6)
- 5-Chloro-6-(dimethylamino)pyridine-3-carboxylic acid (CAS 813424-73-6)
- 5-Chloro-2-methoxy-4-methylbenzoic acid (CAS 28478-41-3)
- 5-Chloro-N'-hydroxy-2-methoxybenzenecarboximidamide (CAS 884982-76-7)
- Methyl 4-(2-methoxyacetamido)benzoate (CAS 720675-94-5)
- Methyl 2-(1h-1,3-benzodiazol-2-ylsulfanyl)propanoate (CAS 196391-40-9)
- N-(4-Bromophenyl)-N-(1,1-dioxido-2,3-dihydrothiophen-3-yl)acetamide (CAS 620543-78-4)
- 6-Phenylbenzo[d]isoxazol-3-amine (CAS 268734-42-5)
- (E)-N'-(1-(4-aminophenyl)ethylidene)-2-((1-bromonaphthalen-2-yl)oxy)acetohydrazide (CAS 315672-86-7)
- n-(2-Chloroethyl)-1,3-dihydro-2h-benzo[d]imidazol-2-imine (CAS 84797-54-6)
- N-cyclopropyl-2-(piperidin-4-yloxy)acetamide hydrochloride (CAS 1260763-15-2)
- 2-(O-tolyl)thiazolidine-4-carboxylic acid (CAS 342608-38-2)
- 1-(4-Cinnamylpiperazin-1-yl)-2-(1H-indol-3-yl)ethane-1,2-dione (CAS 1025311-80-1)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
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