Methional
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- Category :
Organic chemicals and Derivatives/Aroma compounds
- CAS NO : 3268-49-3
- EC NO : 221-882-5
- Molecular Formula : C4H8OS
- Main Specifications : 99% min
- Synonyms : .beta.-(Methylthio)propionaldehyde;3-(Methylsulfanyl)propanal;Propanal, 3- (methylthio)-;propanal, 3-(methylthio)-;Propionaldehyde, 3-(methylthio)-;2-(methylsulfanyl)propanal;3-Methylthiopropylaldehyde;3-Methylthio propionaldehyde;Methional;
Package: 25kg，50kg 200kg
Uses : used in baked foods, condiments, soft drinks and candies
Molecular Structure:
Product description:
What is the chemical of Methional ?
Appearance: A colorless to pale yellow or amber liquid with a foul odor ;
Assay：99%min by GC ;
IR Identity: conform to standard ;
HNMR： conform to standard ;
carbon spectrum: conform to standard ;
Water by K. F.:0.5% max or as per the customer’s request ;
Loss on drying:0.5% max. or as per the customer’s request ;
boiling point: 165–166 °C;
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purpose
The main uses of 3-methylthiopropanal include:
Edible essence: as a key flavor substance, it is widely used in baked foods, condiments, soft drinks and candies to enhance the meat flavor and onion flavor, and improve the overall flavor level of food through Maillard reaction.
Pharmaceutical intermediate: It is an important intermediate for the synthesis of methionine (an essential amino acid) and has significant applications in the pharmaceutical industry.
Other uses: It can be used as a chemical agent to participate in organic reactions such as oxidative coupling, alkyne hydroacylation, etc., and also used as a synthetic intermediate of daily chemical raw materials and essence
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Main synthesis pathways:
Acrolein and Methyl Thiol Addition Method: This is a commonly used method in industry. Add acrolein and methanol into a reaction tank, stir and add copper acetate as a catalyst, heat to 30-40 ℃, and then introduce methyl mercaptan gas that has been cooled, acid washed, and dehydrated until the relative density of the reaction solution reaches 1.060-1.065, to obtain 3-methylthiopropanal.
? Reaction method of malononitrile with hydrogen sulfide: Firstly, malononitrile reacts with hydrogen sulfide to form an intermediate, and then acylation reaction is carried out using thionyl chloride to obtain the target product.
? Reaction method of sulfonyl chloride and sodium methylsulfate: By reacting sulfonyl chloride with sodium methylsulfate, the corresponding thio compounds are generated, which are then further processed to obtain 3-methylthiopropanal.
? Reaction method of sodium ethyl sulfate with acetic acid: This method involves the reaction of sodium ethyl sulfate with acetic acid as one of the synthetic routes.
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