(2-Chloro-4-formylphenoxy)acetic acid CAS 52268-20-9
| CAS No. | 52268-20-9 |
| Molecular Formula | C9H7ClO4 |
| Molecular Weight | 214.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(2-Chloro-4-formylphenoxy)acetic acid (CAS 52268-20-9), molecular formula C9H7ClO4 and molecular weight 214.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H7ClO4, (2-Chloro-4-formylphenoxy)acetic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), (2-Chloro-4-formylphenoxy)acetic acid 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 | C9H7ClO4 |
| Molecular Weight | 214.60 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-chloro-2-(difluoromethyl)quinazoline (CAS 1039312-08-7)
- 3-Chloro-6-((trifluoromethyl)thio)pyridazine (CAS 1206523-89-8)
- 2-Chloro-6-trifluoromethylsulfanylpyrazine (CAS 1206524-06-2)
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- 4-Chloro-2-(methoxycarbonyl)benzoic acid (CAS 1310531-95-3)
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- 6-Chloro-2-formyl-3-hydroxy-benzoic acid methyl ester (CAS 1427373-63-4)
- 2-(4-Chloro-2-formylphenoxy)acetic acid (CAS 14440-47-2)
Recommended Standards
- 2-(Carboxymethyl)-5-chlorobenzoic acid (CAS 19725-81-6)
- 2-(3-Chloro-4-methoxyphenyl)-2-oxoacetic acid (CAS 66340-51-0)
- 4-Chloro-5,7-difluoro-2-methylquinazoline (CAS 1823885-13-7)
- 2-(carboxymethyl)-3-chlorobenzoic acid (CAS 22482-74-2)
- Methyl 4-Oxohexanoate (CAS 2955-62-6)
- 2-amino-4-(trifluoromethyl)thiophene-3-carboxamide (CAS 2060031-38-9)
- N-ethyl-4-(methylsulfonyl)aniline (CAS 1019594-39-8)
- (R)-2-(3-bromo-5-methoxyphenyl)piperidine (CAS 1388718-90-8)
- (4-Methyl-3,5-Dinitrophenyl)boronic acid (CAS 28249-49-2)
- (3-Methoxy-2-nitrophenyl)methanol (CAS 53055-04-2)
- 6-Chloro-1h,2h,3h-pyrrolo[2,3-b]pyridine (CAS 53516-07-7)
- Methyl 3-methyl-2-oxo-1,2-dihydroquinoline-7-carboxylate (CAS 813425-28-4)
- Tipiracil Impurity 14 (CAS CATO-C4X-100514)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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