4-[(2-Hydroxyethyl)sulfonyl]benzoic Acid CAS 7180-09-8
| CAS No. | 7180-09-8 |
| Molecular Formula | C9H10O5S |
| Molecular Weight | 230.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-[(2-Hydroxyethyl)sulfonyl]benzoic Acid (CAS 7180-09-8), molecular formula C9H10O5S and molecular weight 230.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-[(2-Hydroxyethyl)sulfonyl]benzoic Acid (C9H10O5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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 230.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 4-[(2-Hydroxyethyl)sulfonyl]benzoic Acid 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 | C9H10O5S |
| Molecular Weight | 230.24 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Sulfur Atoms | 1 |
Related Hydroxyethyl Standards
- 3-((2-Hydroxyethyl)sulfonyl)benzoic acid (CAS 7180-11-2)
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Recommended Standards
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- 2-(4-(Difluoromethyl)-5,6-diiodopyridin-3-yl)acetic acid (CAS 1806805-80-0)
- 4-Bromo-N-((tetrahydrofuran-2-yl)methyl)benzamide (CAS 326898-76-4)
- (S)-(-)-Malic-2，3，3-d3 Acid (CAS 59652-74-3)
- 4-Bromo-2,5-dichlorothiophene-3-sulfonyl chloride (CAS 166964-36-9)
- 2-(4-Benzylpiperazin-1-yl)thiazole-5-carbaldehyde (CAS 303987-22-6)
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- 1-(1-Methylpyrrolidin-3-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1707563-19-6)
- Crustacean Cardioactive Peptide (CCAP) (CAS 309247-84-5)
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