98-42-0 3-Amino-4-methoxybenzenesulphonic acid Benzenesulfonic acid, 3-amino-4-methoxy- Metanilic acid, 4-methoxy- (8CI) 3-Amino-4-methoxybenzenesulfonic acid o-Anisidine-p-sulfonic acid o-Anisidine-4-sulfonic acid EINECS 202-667-5 2-Methoxyaniline-5-sulfonic acid 4-Methoxymetanilic acid 2-Methoxy-5-sulfoaniline NSC 74459 EC 202-667-5 CAS 98-42-0
| CAS No. | 98-42-0 |
| Molecular Formula | C7H15NO4S |
| Molecular Weight | 209.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 209.26 g/mol gives 98-42-0 3-Amino-4-methoxybenzenesulphonic acid Benzenesulfonic acid, 3-amino-4-methoxy- Metanilic acid, 4-methoxy- (8CI) 3-Amino-4-methoxybenzenesulfonic acid o-Anisidine-p-sulfonic acid o-Anisidine-4-sulfonic acid EINECS 202-667-5 2-Methoxyaniline-5-sulfonic acid 4-Methoxymetanilic acid 2-Methoxy-5-sulfoaniline NSC 74459 EC 202-667-5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
98-42-0 3-Amino-4-methoxybenzenesulphonic acid Benzenesulfonic acid, 3-amino-4-methoxy- Metanilic acid, 4-methoxy- (8CI) 3-Amino-4-methoxybenzenesulfonic acid o-Anisidine-p-sulfonic acid o-Anisidine-4-sulfonic acid EINECS 202-667-5 2-Methoxyaniline-5-sulfonic acid 4-Methoxymetanilic acid 2-Methoxy-5-sulfoaniline NSC 74459 EC 202-667-5 (CAS 98-42-0) is a high-purity analytical reference standard with the molecular formula C7H15NO4S and a molecular weight of 209.26 g/mol.
The molecular framework of 98-42-0 3-Amino-4-methoxybenzenesulphonic acid Benzenesulfonic acid, 3-amino-4-methoxy- Metanilic acid, 4-methoxy- (8CI) 3-Amino-4-methoxybenzenesulfonic acid o-Anisidine-p-sulfonic acid o-Anisidine-4-sulfonic acid EINECS 202-667-5 2-Methoxyaniline-5-sulfonic acid 4-Methoxymetanilic acid 2-Methoxy-5-sulfoaniline NSC 74459 EC 202-667-5 (C7H15NO4S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 98-42-0 3-Amino-4-methoxybenzenesulphonic acid Benzenesulfonic acid, 3-amino-4-methoxy- Metanilic acid, 4-methoxy- (8CI) 3-Amino-4-methoxybenzenesulfonic acid o-Anisidine-p-sulfonic acid o-Anisidine-4-sulfonic acid EINECS 202-667-5 2-Methoxyaniline-5-sulfonic acid 4-Methoxymetanilic acid 2-Methoxy-5-sulfoaniline NSC 74459 EC 202-667-5 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 | C7H15NO4S |
| Molecular Weight | 209.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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