2-(4-(Methylsulfonyl)phenyl)-2-oxoacetaldehyde hydrate CAS 1190013-02-5
| CAS No. | 1190013-02-5 |
| Molecular Formula | C9H8O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(4-(Methylsulfonyl)phenyl)-2-oxoacetaldehyde hydrate (C9H8O4SH2O) 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 230.23 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).
CATO supplies 2-(4-(Methylsulfonyl)phenyl)-2-oxoacetaldehyde hydrate (CAS 1190013-02-5), a certified reference material (molecular formula C9H8O4SH2O, MW 230.23 g/mol) for analytical method development and quality control.
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 | C9H8O4S H2O |
| Molecular Weight | 230.23 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.) | 1989 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- 2,4-Bis(methylsulfonyl)-1-bromobenzene (CAS 1000018-15-4)
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Recommended Standards
- (2E)-1-(4-Fluorophenyl)-3-[(2-hydroxyphenyl)amino]prop-2-en-1-one (CAS 423747-09-5)
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- 4-Methoxy-2-methylene-4-oxobutanoic acid (CAS 7338-27-4)
- 3-Nitro-5-(propylthio)aniline (CAS 899710-41-9)
- Methyl (R)-3-amino-3-(3,4,5-trifluorophenyl)propanoate (CAS 1213919-04-0)
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- 3-(Difluoromethyl)-2-methylbenzoic acid (CAS 848444-82-6)
- 3-((Cyclopropylmethyl)amino)-1-(4-fluorophenyl)pyrrolidine-2,5-dione (CAS 1415719-10-6)
- 3-(3-(Pyridin-2-ylmethyl)-1H-imidazol-3-ium-1-yl)propane-1-sulfonate (CAS 1374404-06-4)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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