98-37-3
4-Hydroxymetanilic acid
3-Amino-4-hydroxybenzenesulphonic acid
2-Amino-1-phenol-4-sulfonic acid
Benzenesulfonic acid, 3-amino-4-hydroxy-
Metanilic acid, 4-hydroxy- (8CI)
AI3-14898
3-Amino-4-hydroxybenzenesulfonic acid
o-Aminophenol-p-sulfonic acid
2-Aminophenol-4-sulfonic acid
2-Amino-4-sulfophenol
CCRIS 4584
EINECS 202-662-8
4-Hydroxy-3-aminobenzenesulfonic acid
2-Hydroxy-5-sulfoaniline
NSC 1491
EC 202-662-8 CAS 98-37-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 98-37-3 |
| Molecular Formula | C6H13NO4S |
| Molecular Weight | 195.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
98-37-3
4-Hydroxymetanilic acid
3-Amino-4-hydroxybenzenesulphonic acid
2-Amino-1-phenol-4-sulfonic acid
Benzenesulfonic acid, 3-amino-4-hydroxy-
Metanilic acid, 4-hydroxy- (8CI)
AI3-14898
3-Amino-4-hydroxybenzenesulfonic acid
o-Aminophenol-p-sulfonic acid
2-Aminophenol-4-sulfonic acid
2-Amino-4-sulfophenol
CCRIS 4584
EINECS 202-662-8
4-Hydroxy-3-aminobenzenesulfonic acid
2-Hydroxy-5-sulfoaniline
NSC 1491
EC 202-662-8 (CAS 98-37-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H13NO4S. Molecular weight: 195.24 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H13NO4S |
| Molecular Weight | 195.24 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 |
Why CATO?
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