2,4-Dichloro-3-methoxybenzoic acid CAS 115382-33-7
| CAS No. | 115382-33-7 |
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,4-Dichloro-3-methoxybenzoic 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.
2,4-Dichloro-3-methoxybenzoic acid (CAS 115382-33-7), molecular formula C8H6Cl2O3 and molecular weight 221.04 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2,4-Dichloro-3-methoxybenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.04 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).
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.
Physical & Chemical Properties
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1989 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 4,5-Dichloro-N-methyl-2-nitroaniline (CAS 107342-18-7)
- Methyl 2,4-dichloro-3-hydroxybenzoate (CAS 129788-30-3)
- 4,5-Dichloro-2-(2-oxopropyl)pyridazin-3(2H)-one (CAS 130159-58-9)
- Methyl 2,6-dichloro-3-hydroxybenzoate (CAS 142601-42-1)
- 3,4-Dichloro-2-methoxybenzoic acid (CAS 155382-86-8)
- (3,4-Dichloro-2-nitrophenyl)methanamine (CAS 1804897-45-7)
- Methyl 2,4-dichloro-5-hydroxybenzoate (CAS 1806282-22-3)
- Methyl 2,3-dichloro-5-hydroxybenzoate (CAS 1806302-90-8)
Recommended Standards
- 2-(1-Bromoethyl)-1,3-difluorobenzene (CAS 113212-10-5)
- 1-(2-bromo-1-fluoroethyl)-4-fluorobenzene (CAS 118887-66-4)
- 2-Amino-3,5-dichloro-N-hydroxybenzamide (CAS 1130-71-8)
- 1-(Bromomethyl)-2-(difluoromethyl)benzene (CAS 1222556-61-7)
- Ethyl 3-methyl-5-(trifluoromethoxy)benzoate (CAS 1261583-08-7)
- 1,5-Diazaspiro[3.5]nonane dihydrochloride (CAS 1334499-62-5)
- 4-Bromo-3-chloro-1-benzothiophene-2-carboxylic acid (CAS 926257-36-5)
- ethyl 2-(trifluoromethyl)indolizine-1-carboxylate (CAS 1284226-15-8)
- (2-(1,4-Dioxa-8-azaspiro[4.5]decan-8-yl)pyridin-3-yl)boronic acid (CAS 941572-43-6)
- Dicyclobutylmethanamine (CAS 89770-46-7)
- Lenalidomide-C6-azide (CAS 2399455-84-4)
- 1-Amino-4-((3-((dimethylamino)methyl)phenyl)amino)anthracene-9,10-dione (CAS 83968-84-7)
- N-Cyclopentyl-2-((6-oxo-4-propyl-1,6-dihydropyrimidin-2-yl)thio)acetamide (CAS 380487-01-4)
- Semaglutide Impurity 1(OtBu-Ste-D-γGlu(OtBu)-AEEA-AEEA-OH) (CAS CATO-C4X-22261)
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