Pure Plant Extract Raspberry Ketone 5471-51-2 Granular Solid For Food Sweeten And Smell
Product introduction
Raspberry ketone (also known as raspberry ketone) exists in natural raspberry juice, the content is about (0.1~0.2)×10-6, is an important fragrance component of the basin essential oil, is widely used at home and abroad a kind of fragrance with elegant fruit, its chemical name is 4-p-hydroxybenzene Chemicalbook - 2-butanone, It is a shiny particle or needle-like white crystal with a melting point of 83 ° C and a boiling point of 161 ° C (0.67kPa), soluble in alcohols and oils, and almost insoluble in water. Raspberry ketone has great economic value, which has been widely concerned in recent years, and the demand is increasing year by year.
Pure Plant Extract Raspberry Ketone 5471-51-2 Granular Solid For Food Sweeten And Smell
| Fusing point | 81-85°C(lit.) |
| Boiling point | 200°C |
| density | 1.0326 (roughestimate) |
| Vapor pressure | 40Paat25℃ |
| FEMA | 2588|4-(P-HYDROXYPHENYL)-2-BUTANONE |
| Refractive index | 1.5250 (estimate) |
| Storage condition | underinertgas(aChemicalbookrgon) |
| solubility | 95%ethanol:soluble50mg/mL,cleartoslightlyhazy,colorlesstofaintyellowortan |
| Acidity coefficient | (pKa) 9.99 + / - 0.15 (Predicted) |
| form | Liquid |
Product application
Raspberry ketone is not only widely used in the preparation of edible flavor and daily flavor, but also used in the synthesis and manufacture of medicine, cosmetics, dyes, etc. In addition, raspberry ketone and its acetyl compounds are drosophi attractants, which can be synthesized as agricultural use. At the same time, because of the aromatic ring, hydroxyl group and ketone group in the Chemicalbook molecular structure of raspberry ketone, it has special chemical activity and is also an important fine chemical intermediate. With the further development of the fragrance industry and organic synthesis industry, the research value of raspberry ketone has also steadily increased, in addition to being used as a fragrance, it is also widely used in other fields.
Pure Plant Extract Raspberry Ketone 5471-51-2 Granular Solid For Food Sweeten And Smell
preparation
Using p-hydroxybenzaldehyde and as raw materials, 4-p-hydroxyphenyl-3-butene-2-ketone was synthesized by Claisen-Schmidt condensation under base catalysis through orthogonal test optimization process (88.4% yield). Raspberry ketone was further synthesized by hydrogenation under palladium-carbon catalysis (84.0% yield). P-hydroxyphenyl-3-butene-2-ketone was synthesized with NaOH solution as Claisen-Schmidt condensation catalyst. The yields of raspberry ketone were 72.55% and 65.7Chemicalbook%, respectively, using 5%Pd/C and nickel formate as the second reaction catalyst. Orthogonal test was used to study the condensation reaction conditions of p-hydroxybenzaldehyde and, and the optimal process conditions were as follows: The ratio of n(p-hydroxybenzaldehyde)∶n∶n(NaOH)=1.0∶25∶25(reaction at 30℃ for 5h), and then by conventional hydrogenation reduction, vacuum distillation, mixed solvent recrystallization to obtain raspberry ketone (yield 61.8%). Claisen-Schmid condensation reaction was catalyzed by NaOH, nickel formate as catalyst and isopropyl alcohol as solvent to produce raspberry ketone with yield of 42.0%.
Chemical property
White acicular crystal or granular solid. Raspberry aromas and fruity notes. Melting point 82 ~ 83℃. Insoluble in water and petroleum, soluble in ethanol, and volatile oil. Natural products are found in raspberries (raspberries), etc.
Pure Plant Extract Raspberry Ketone 5471-51-2 Granular Solid For Food Sweeten And Smell
Product use
Gb2760-96 specifies the permissible use of edible spices. Mainly used to prepare raspberry, grape, strawberry and other flavors. It can also be used in cosmetics and soap flavors. Raspberry ketone is a food flavor allowed to be used in China's "hygienic Standard for the use of food Additives", and is mostly used to prepare fruit flavors such as pineapple, peach, strawberry and plum. The amount used in chewing gum is 40 ~ 320mg/kg; 54mg/kg in baked goods; 44mg/kg in candy; 34mg/kg in cold drinks; Widely used in strawberry, raspberry, pineapple, peach and other edible flavors, usually in fruity flavor as a fixing agent. In the daily chemical flavor can be used in jasmine, flower, tuberose and other formulations. As a modifier, it is used in jasmine, gardenia, tuberose and other flower fragrance daily flavor. In food flavor, it is used in strawberry, pineapple, peach, plum, hanging fish and other flavors. As a modifier, it is used in daily spices such as jasmine and tuberose, and in edible spices, it is mostly used in spices such as strawberry, pineapple, peach and plum.
FAQ
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A5: We are a manufacturer.
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A6: Before formal production, we will send samples to you for testing.
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A7: About 30-45 days.
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