4-Methylsulphonylacetophenone
Synonym(s):1-[4-(Methylsulfonyl)phenyl]ethan-1-one;4-(Methylsulfonyl)acetophenone;NSC 403928
- CAS NO.：10297-73-1
- Empirical Formula: C9H10O3S
- Molecular Weight: 198.24
- MDL number: MFCD00025072
- EINECS: 233-672-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:22:09
What is 4-Methylsulphonylacetophenone?
Chemical properties
white to slightly yellow cryst. powder or needles
The Uses of 4-Methylsulphonylacetophenone
4-(Methylsulfonyl)acetophenone is an impurity of Etoricoxib (E934100), which is a specific inhibitor of COX-2.
The Uses of 4-Methylsulphonylacetophenone
4′-(Methylsulfonyl)acetophenone may be used in the synthesis of:
- 3-(4-Methylsulfonylphenyl)-4-phenyl-2(5H)-furanone with potent apoptosis-inducing ability.
- Bromo-4-methylsulfonylacetophenone, an intermediate for preparing DL-threo-2-dichloroacetamido-1-(4-methylsulfonylphenyl)-1,3-propanediol.
- 1-N-Substituted-3,5-diphenyl-2-pyrazoline derivatives, which show promising anti-inflammatory activity.
Properties of 4-Methylsulphonylacetophenone
| Melting point: | 126-129 °C(lit.) |
| Boiling point: | 305.56°C (rough estimate) |
| Density | 1.3339 (rough estimate) |
| refractive index | 1.5250 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly, Heated) |
| form | Crystalline Powder or Needles |
| color | White to slightly yellow |
| CAS DataBase Reference | 10297-73-1(CAS DataBase Reference) |
Safety information for 4-Methylsulphonylacetophenone
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H332:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Methylsulphonylacetophenone
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