2,6-Dichloro-4-formylbenzoic acid CAS 1807998-43-1
| CAS No. | 1807998-43-1 |
| Molecular Formula | C8H4Cl2O3 |
| Molecular Weight | 219.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,6-Dichloro-4-formylbenzoic acid (C8H4Cl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,6-Dichloro-4-formylbenzoic acid (CAS 1807998-43-1), molecular formula C8H4Cl2O3 and molecular weight 219.02 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2,6-Dichloro-4-formylbenzoic 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 | C8H4Cl2O3 |
| Molecular Weight | 219.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1995 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 4,5-Dichloro-2-formylbenzoic acid (CAS 1058164-94-5)
- 6,7-Dichloro-3-hydroxyisobenzofuran-1(3H)-one (CAS 112794-36-2)
- 3,5-Dichloro-4-formylbenzoic acid (CAS 153203-80-6)
- 2,4-Dichloro-3-formylbenzoic acid (CAS 196819-51-9)
- 4,6-Dichloro-3-methoxy-1H-pyrazolo[3,4-d]pyrimidine (CAS 1936241-59-6)
- 5-[(4,5-Dichloro-1H-imidazol-1-yl)methyl]-2H-1,2,3,4-tetrazole (CAS 680211-57-8)
- Methyl 2,6-dichloro-4-methylbenzoate (CAS 1098620-09-7)
- methyl 2,5-dichloro-3-methylbenzoate (CAS 1241948-41-3)
Recommended Standards
- 3-Iodo-5-methylpyridine (CAS 15366-64-0)
- 2-(2,5-Dichlorophenyl)-2-oxoacetic acid (CAS 26767-05-5)
- 3-Iodo-2-methylpyridine (CAS 15112-62-6)
- 2-(3,4-Dichlorophenyl)-2-oxoacetic acid (CAS 64471-83-6)
- 1H-Pyrazolo[3,4-b]pyridine-6-carboxylic Acid (CAS 1251111-24-6)
- 7-Hydroxybenzo[d][1,3]dioxole-5-carbaldehyde (CAS 81805-98-3)
- Cyanotoluene sulfonate (CAS 10531-13-2)
- 1,3-Dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carbonyl chloride (CAS 479028-65-4)
- 3-Chloro-4-((4-chlorobenzyl)oxy)benzohydrazide (CAS 1706445-94-4)
- 4-{5-[(4-chlorophenyl)sulfanyl]-4-(4-methoxyphenyl)-1,3-thiazol-2-yl}morpholine (CAS 685107-09-9)
- 7-Chloroquinoline-8-sulfonamide (CAS 83055-70-3)
- Pregnenolone Impurity 1 (CAS 1162-53-4)
- Benzyl(2-ethoxyethyl)amine (CAS 67411-38-5)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
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