2,3-dichloro-5-sulfamoylbenzoic acid CAS 869965-83-3
| CAS No. | 869965-83-3 |
| Molecular Formula | C7H5Cl2NO4S |
| Molecular Weight | 270.09 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 2,3-dichloro-5-sulfamoylbenzoic acid.
2,3-dichloro-5-sulfamoylbenzoic acid (CAS 869965-83-3) is a high-purity analytical reference standard with the molecular formula C7H5Cl2NO4S and a molecular weight of 270.09 g/mol.
2,3-dichloro-5-sulfamoylbenzoic acid (C7H5Cl2NO4S) contains an amide group, a sulfone group, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 2,3-dichloro-5-sulfamoylbenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5Cl2NO4S |
| Molecular Weight | 270.09 g/mol |
| 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, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related dichloro Standards
- (4,6-Dichloro-3-pyridyl)(4-fluorophenyl)methanone (CAS 862170-55-6)
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- 4-((4,6-Dichloro-1,3,5-triazin-2-yl)oxy)benzaldehyde (CAS 112719-60-5)
- 4,6-Dichloro-2-(4-nitrophenyl)pyrimidine (CAS 83217-23-6)
- 4,6-Dichloro-5-nitro-2-phenylpyrimidine (CAS 68921-91-5)
- 5-(4,6-Dichloro-1H-indol-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 648417-05-4)
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Recommended Standards
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- [2-(2-phenylethyl)-1,3-thiazol-4-yl]methanamine (CAS 933683-67-1)
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- (S)-2-Methylpyrrolidine-2-carboxamide (CAS 132235-43-9)
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- Aminopropylsilanetriol (CAS 29159-37-3)
- Neuropeptide Y (2-36), amide, porcine (CAS 102961-52-4)
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