Sodium 2-(hydroxymethyl)benzene-1-sulfonate CAS 31910-67-5
| CAS No. | 31910-67-5 |
| Molecular Formula | C7H7O4S |
| Molecular Weight | N/A |
| 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 Sodium 2-(hydroxymethyl)benzene-1-sulfonate.
Sodium 2-(hydroxymethyl)benzene-1-sulfonate (CAS 31910-67-5) is a high-purity analytical reference standard with the molecular formula C7H7O4SNa and a molecular weight of 210.18 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Sodium 2-(hydroxymethyl)benzene-1-sulfonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.18 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H7O4S Na |
| Molecular Weight | 210.18 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Sulfur Atoms | 1 |
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- 2-Amino-N-(4-fluorophenyl)benzenesulfonamide (CAS 159048-93-8)
- 7-fluoro-1,2-dimethyl-1H-1,3-benzodiazol-6-amine (CAS 1357192-58-5)
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