2,4-Dichloro-5-methanesulfonylbenzoic acid CAS 51521-75-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 51521-75-6 |
| Molecular Formula | C8H6Cl2O4S |
| Molecular Weight | 269.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Dichloro-5-methanesulfonylbenzoic acid (CAS 51521-75-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H6Cl2O4S. Molecular weight: 269.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H6Cl2O4S |
| Molecular Weight | 269.10 g/mol |
| 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.) | 1971 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,3-Dichloro-4-(methylsulfonyl)benzoic Acid (CAS 105917-77-9)
- 2,6-Dichloro-3-methanesulfonylbenzoic acid (CAS 1094404-69-9)
- 2,5-Dichloro-4-(methylsulfonyl)benzoic Acid (CAS 118939-22-3)
- 2,6-Dichloro-4-fluoro-[1,1-biphenyl]-4-carbaldehyde (CAS 1350760-15-4)
- 3',4'-Dichloro-2-fluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 1361720-12-8)
- 3',5'-Dichloro-3-fluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 1361871-90-0)
- 3,4-Dichloro-4'-fluorobenzophenone (CAS 157428-51-8)
- 3,5-Dichloro-4-fluorobenzophenone (CAS 197439-66-0)
Recommended Standards
- 2,4'-Dichloro-3'-fluorobenzophenone (CAS 951890-52-1)
- 2-chloro-5-(chlorosulfonyl)-3-methylbenzoic acid (CAS 90048-72-9)
- 2,4'-Dichloro-3'-fluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 2624416-83-5)
- n,n-Dimethyl-2-((5-methylheptan-3-yl)amino)acetamide (CAS 1096870-99-3)
- 3,5-Dichloro-2-ethylbenzophenone (CAS 951885-06-6)
- (2-Amino-6-cyclopropylphenyl)boronic acid (CAS 2225181-59-7)
- Hexazinone Impurity 26 (CAS 51235-44-0)
- Ethyl 4-(4-ethylphenyl)thiazole-2-carboxylate (CAS 886366-45-6)
- 4-(4-(Ethoxycarbonyl)benzoyl)benzoic acid (CAS 113709-91-4)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
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