2,6-Dichloro-3,5-dimethoxybenzoic acid CAS 75177-59-2
| CAS No. | 75177-59-2 |
| Molecular Formula | C9H8Cl2O4 |
| Molecular Weight | 251.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,6-Dichloro-3,5-dimethoxybenzoic acid.
2,6-Dichloro-3,5-dimethoxybenzoic acid (CAS 75177-59-2), molecular formula C9H8Cl2O4 and molecular weight 251.06 g/mol, is a CATO reference standard with documented purity and traceability.
2,6-Dichloro-3,5-dimethoxybenzoic acid (C9H8Cl2O4) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H8Cl2O4 |
| Molecular Weight | 251.06 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.) | 1978 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- Methyl 2,5-dichloro-3-hydroxy-6-methoxybenzoate (CAS 1327292-78-3)
- 2,3-Dichloro-6-(methoxymethoxy)benzoic acid (CAS 2179038-27-6)
- 2,4-Dichloro-6-(methoxymethoxy)benzoic acid (CAS 2624417-34-9)
- 3,5-Dichloro-2,6-dimethoxybenzoic Acid (CAS 73219-91-7)
- Ethyl 2,6-dichloro-5-methoxypyrimidine-4-carboxylate (CAS 1313717-11-1)
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Recommended Standards
- 2-Fluoro-4-(piperidine-1-carbonyl)phenylboronic acid (CAS 874289-26-6)
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- 4-(2-Iodoethyl)-3,5-dimethylisoxazole (CAS 83467-36-1)
- 1-(Iodomethyl)-2-azabicyclo[2.2.1]heptan-3-one (CAS 2137822-75-2)
- 2-(Cyclohexylamino)-1-phenylethanone (CAS 40312-83-2)
- (S)-6-fluoro-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 874216-80-5)
- 2-((1R,4r)-4-fluorocyclohexyl)acetic acid (CAS 1785049-56-0)
- Ethyl 4-oxooctanoate (CAS 37174-96-2)
- Methyl 4-cyclopropylthiophene-2-carboxylate (CAS 2111296-73-0)
- Rel-(4R,6R,7R)-7-hydroxy-4,6-dimethylnonan-3-one (CAS 92999-14-9)
- Ethyl 2-(3-(tert-butyl)-1-(2-methoxyethyl)-1H-1,2,4-triazol-5-yl)acetate (CAS 1597421-66-3)
- Bifeprunox Mesylate (CAS 350992-13-1)
- 4-Bromopiperidine hydrochloride, 95% (CAS 1001397-43-8)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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