Methyl 5-(fluorosulfonyl)-2-hydroxybenzoate CAS 400-89-5
| CAS No. | 400-89-5 |
| Molecular Formula | C8H7FO5S |
| Molecular Weight | 234.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 5-(fluorosulfonyl)-2-hydroxybenzoate (CAS 400-89-5), molecular formula C8H7FO5S and molecular weight 234.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 5-(fluorosulfonyl)-2-hydroxybenzoate (C8H7FO5S) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 234.20 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Methyl 5-(fluorosulfonyl)-2-hydroxybenzoate 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 | C8H7FO5S |
| Molecular Weight | 234.20 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- 5-(Fluorosulfonyl)-2-methoxybenzoic acid (CAS 2488-50-8)
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- Tert-butyl 5-((methylamino)methyl)-2-azabicyclo[2.2.2]Octane-2-carboxylate (CAS 2169097-05-4)
- 4-(1,2-Dihydroxyethyl)benzonitrile (CAS 179694-32-7)
- (Z)-(2-phenylcyclopropyl)(pyridin-2-yl)methanone oxime (CAS 338415-70-6)
- 2-Amino-5-fluoropyridin-3-ol (CAS 1003711-04-3)
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- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
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