3-Chlorophthalaldehyde CAS 438461-49-5
| CAS No. | 438461-49-5 |
| Molecular Formula | C8H5ClO2 |
| Molecular Weight | 168.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Chlorophthalaldehyde (CAS 438461-49-5), a certified reference material (molecular formula C8H5ClO2, MW 168.58 g/mol) for analytical method development and quality control.
Structurally, 3-Chlorophthalaldehyde (C8H5ClO2) 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 168.58 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Chlorophthalaldehyde 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 | C8H5ClO2 |
| Molecular Weight | 168.58 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Chlorophthalaldehyde Standards
Recommended Standards
- 3-Chloroimidazo[1,2-a]pyridin-7-ol (CAS 2382882-68-8)
- 3-Chlorophthalide (CAS 6295-21-2)
- 3-Chlorobenzo[d]isoxazol-5-amine (CAS 73498-29-0)
- 3-Formylbenzoyl chloride (CAS 75650-38-3)
- 5-(1-(3,5-Dimethylphenoxy)ethyl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 667413-03-8)
- 5-Bromo-N-(4-chlorophenyl)-2-(methylthio)pyrimidine-4-carboxamide (CAS 872868-94-5)
- tert-butyl 4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1909317-16-3)
- 6-Acetamido-4-cyanopyridine-2-sulfonyl chloride (CAS 1393539-15-5)
- 3-Chloro-6-methylpicolinaldehyde (CAS 1060810-01-6)
- N-((5-(2-Fluorophenyl)isoxazol-3-yl)methyl)-2-phenoxyacetamide (CAS 1040637-41-9)
- 1-Bromo-2-(methoxymethyl)-5-nitro-3-(trifluoromethyl)benzene (CAS 2738977-75-6)
- Methyl 3-(4-iodo-1h-pyrazol-1-yl)-2-(propylamino)propanoate (CAS 1341096-54-5)
- 2-(3-Aminopyrrolidin-1-yl)-1-(pyrrolidin-1-yl)ethan-1-one (CAS 1247554-32-0)
- Peptide Impurity 26 (CAS 1350456-66-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com