4-hydroxy-2-methylbenzenesulfonic acid ammonium salt CAS 2742982-16-5
| CAS No. | 2742982-16-5 |
| Molecular Formula | C7H7O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 205.23 g/mol gives 4-hydroxy-2-methylbenzenesulfonic acid ammonium salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-hydroxy-2-methylbenzenesulfonic acid ammonium salt (CAS 2742982-16-5), a certified reference material (molecular formula C7H7O4SH4N, MW 205.23 g/mol) for analytical method development and quality control.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 4-hydroxy-2-methylbenzenesulfonic acid ammonium salt is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 205.23 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-hydroxy-2-methylbenzenesulfonic acid ammonium salt 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 | C7H7O4S H4N |
| Molecular Weight | 205.23 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
Why CATO?
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