3-(Methylthio)butanal
- CAS NO.：16630-52-7
- Empirical Formula: C5H10OS
- Molecular Weight: 118.2
- MDL number: MFCD00036622
- EINECS: 240-678-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-09-25 17:15:13
What is 3-(Methylthio)butanal?
Description
3-(Methylthio)butanal has the flavor of potato chips. It is prepared by addition of methanethiol to the corresponding unsaturated aldehyde (previously cooled to -20°C), using piperidine or copper acetate as catalyst; by a patented oxo process.
Chemical properties
3-Methylthiobutyraldehyde has a green, musky, buchu odor and a flavor reminiscent of potato chip
Occurrence
Reported found in French fried potato and krill.
The Uses of 3-(Methylthio)butanal
3-(Methylthio)butanal, is shown to be used as flavoring and fragrances agent. It is also used as a starting material for the synthesis of Sulfoxaflor (S755005), which is an insecticide .
Preparation
By addition of methanethiol to the corresponding unsaturated aldehyde (previously cooled to -20°C), using piperidine or copper acetate as catalyst; by a patented oxo process
Definition
ChEBI: 3-(Methylthio)butanal is an aldehyde.
Taste threshold values
Taste characteristics at 0.2 ppm: vegetative, tomato, fishy and sulfureous.
Properties of 3-(Methylthio)butanal
| Boiling point: | 62-64 °C10 mm Hg(lit.) |
| Density | 1.001 g/mL at 25 °C(lit.) |
| vapor density | 4.1 (vs air) |
| vapor pressure | 60 mm Hg ( 20 °C) |
| refractive index | n |
| FEMA | 3374 | 3-(METHYLTHIO)BUTANAL |
| Flash point: | 144 °F |
| solubility | soluble in Chloroform, Ethyl Acetate |
| form | clear liquid |
| color | Colorless to Light yellow |
| Odor | at 0.10 % in dipropylene glycol. green musk buchu potato chip |
| Sensitive | Air Sensitive |
| JECFA Number | 467 |
| CAS DataBase Reference | 16630-52-7(CAS DataBase Reference) |
| EPA Substance Registry System | Butanal, 3-(methylthio)- (16630-52-7) |
Safety information for 3-(Methylthio)butanal
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H226:Flammable liquids H318:Serious eye damage/eye irritation H331:Acute toxicity,inhalation H341:Germ cell mutagenicity H400:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. 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. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for 3-(Methylthio)butanal
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