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Benzoic aldehyde propylene glycol acetal 2568-25-4
Category : Organic chemicals and Derivatives/Aroma compounds
CAS NO : 2568-25-4 EC NO : 219-906-4 MF : C10H12O2 MW : 164.2011 Specification : 99% min Packing : 25kg，50kg 200kg Product description : What is the chemical of Benzoic aldehyde propylene glycol acetal? Appearance: Colorless to pale yellow transparent liquid, with a mild almond like aroma, and some descriptions may also have sweet, woody, or floral notes ; 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: 242.4 ° C (at 760 mmHg, i.e. atmospheric pressure); ============================================================================== Purpose: Mainly used as a food flavoring, it is allowed to be added to soft drinks (34 mg/kg), cold drinks (27 mg/kg), candies (110 mg/kg), baked goods (96 mg/kg), jelly and pudding (50 mg/kg) and other foods to enhance flavor. It is used as a perfume in cosmetics to prepare essence. It is also used as an intermediate in organic synthesis, such as in the synthesis of the drug epastat. According to the Chinese national standard GB 2760-1996, it is a "temporarily allowed food flavoring". ============================================================================== synthetic route According to its chemical structure (the aldehyde product of Benzoic aldehyde and 1,2-propanediol), the conventional synthesis method is: Acid catalyzed condensation reaction: Benzoic aldehyde and 1,2-propanediol undergo dehydration condensation reaction in the presence of a small amount of acidic catalyst (such as p-toluenesulfonic acid) to produce Benzoic aldehyde propanediol aldehyde. This reaction is usually carried out under inert atmosphere and mild heating conditions, and the product is purified to obtain high-purity reagents. This compound is a mixture of isomers, mainly consisting of stereoisomers such as (2R, 4S), (2S, 4R), and (2S, 4S) Uses : Mainly used as a food flavoring Synonyms : Benzaldehyde propylene glycolacetal;4-methyl-2-phenyl-1,3-dioxolane;Benzaldehyde propylene glycol acetal;Benzoic aldehyde propylene glycol acetal; Molecular Structure : 
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Benzoic aldehyde propylene glycol acetal