3,3-Dimethyl-1-(4-(methylsulfonyl)phenoxy)butan-2-one CAS 1152708-94-5
| CAS No. | 1152708-94-5 |
| Molecular Formula | C13H18O4S |
| Molecular Weight | 270.34 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.
3,3-Dimethyl-1-(4-(methylsulfonyl)phenoxy)butan-2-one (CAS 1152708-94-5), molecular formula C13H18O4S and molecular weight 270.34 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 3,3-Dimethyl-1-(4-(methylsulfonyl)phenoxy)butan-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.34 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).
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 | C13H18O4S |
| Molecular Weight | 270.34 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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 Dimethyl Standards
- 3,3-Dimethyl-1-(3-(methylsulfonyl)phenoxy)butan-2-one (CAS 1156084-99-9)
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- 6-[2-(2,6-Dimethyl-pyridin-3-yl)-2-hydroxy-ethyl]-2-methyl-pyridine-3-carbaldehyde (CAS 1965308-91-1)
- (2E)-3-[3,5-dimethyl-1-(4-methylbenzyl)-1H-pyrazol-4-yl]acrylic acid (CAS 926257-80-9)
- 1,1'-(2,6-Dimethyl-1,2,3,4-tetrahydro-[3,4'-bipyridine]-3,5-diyl)diethanone (CAS 54756-39-7)
- 2-((5,6-Dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid (CAS 54968-60-4)
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Recommended Standards
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- 6-Chloro-4-(methylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbohydrazide (CAS 866134-85-2)
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