2-Hydroxy-5-methylbenzene-1-sulfonyl fluoride CAS 445-07-8
| CAS No. | 445-07-8 |
| Molecular Formula | C7H7FO3S |
| Molecular Weight | 190.19 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-Hydroxy-5-methylbenzene-1-sulfonyl fluoride.
CATO supplies 2-Hydroxy-5-methylbenzene-1-sulfonyl fluoride (CAS 445-07-8), a certified reference material (molecular formula C7H7FO3S, MW 190.19 g/mol) for analytical method development and quality control.
Structurally, 2-Hydroxy-5-methylbenzene-1-sulfonyl fluoride (C7H7FO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 190.19 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 2-Hydroxy-5-methylbenzene-1-sulfonyl fluoride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H7FO3S |
| Molecular Weight | 190.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
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Recommended Standards
- 2-Fluoro-4-methylsulfonylphenol (CAS 398456-87-6)
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- 3-(Hydroxymethyl)benzene-1-sulfonyl fluoride (CAS 96892-89-6)
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- 3-Isopentyl-1,4-dimethyl-1h-pyrazol-5-amine (CAS 1152651-80-3)
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- 2,6-Dimethylundecane (CAS 17301-23-4)
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