3-Chloro-4,5-dimethoxybenzoic acid CAS 20624-87-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20624-87-7 |
| Molecular Formula | C9H9ClO4 |
| Molecular Weight | 216.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-4,5-dimethoxybenzoic acid (CAS 20624-87-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H9ClO4. Molecular weight: 216.62 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H9ClO4 |
| Molecular Weight | 216.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
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- Ethyl 3-chloro-2-oxopyrazine-1(2H)-carboxylate (CAS 1194374-11-2)
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- 3-(3-Chloro-4-hydroxyphenyl)-3-hydroxypropanoic acid (CAS 1248246-33-4)
- 2-(5-Chloro-2-nitrophenoxy)ethan-1-amine (CAS 1248814-38-1)
- 2-(3-Chloro-4-nitrophenoxy)ethan-1-amine (CAS 1249187-43-6)
- 2-Chloro-6-(methoxymethoxy)benzoic acid (CAS 1253188-17-8)
Recommended Standards
- 3-Chloro-2,6-dimethoxybenzoic acid (CAS 36335-47-4)
- 3-Chloro-5-ethoxy-4-hydroxybenzoic acid (CAS 733030-51-8)
- 3-chloro-2,4-dimethoxybenzoic acid (CAS 914933-75-8)
- 2,5-Dibromo-3,4-dibutylthiophene (CAS 247088-06-8)
- 5-Fluoro-2-methoxyphenylacetic Acid (CAS 383134-85-8)
- 5-Cyano-6-fluoropicolinic acid (CAS 1805459-28-2)
- N-[6-(1-hydroxy-1-methyl-ethyl)-2-(2-methylsulfonylethyl)indazol-5-yl]-6-(trifluoromethyl)pyridine-2-carboxamide (CAS 1931994-81-8)
- 3-(3-Chloro-4-fluorophenyl)-2,6-dichloropropiophenone (CAS 898781-43-6)
- 3-Hydroxy-2-mercapto-6-(trifluoromethyl)pyridine (CAS 1934714-64-3)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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 13829788188 / jacky.chen@cato-chem.com