Model No.: X-CAS 145-13-1
Einecs No:: 205-647-4
MP:: 188-190 °C
Density:: 1.09 G/cm3
Bp:: 443.3ºC At 760 MmHg
Packaging: as your requirement
Productivity: 1000kg per Month
Place of Origin: Shandong, China (Mainland)
Supply Ability: in stock
Certificate: ISO CE
HS Code: 2937290090
Free sample CAS 145-13-1 pregnenolone
Geminal enolate acetate, ethanol, Rey Nickel heated together, so that all dissolved at about 50 ℃, and then evacuated access to hydrogen, repeated three times, through the hydrogen, stirring at 34-36 ℃ 3.5h. Let stand, pass nitrogen out of hydrogen, filter out the catalyst. The filtrate was concentrated to recover most of the ethanol, crystallization precipitated. The crystal was put into a hydrolysis pot under reduced pressure to evaporate ethanol, after cooling methanol was added, heated to reflux to dissolve all, 50% aqueous potassium carbonate solution was added, refluxed for 1.5h, concentrated under reduced pressure to recover methanol, cooled to below 5 ℃ after the discharge, Take crystallization, washed with warm until neutral, drying. Then 10 times the amount of ethanol dissolved, plus activated carbon decolorization, recrystallization 1, have been prenyl alcohol ketone.
1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the Raw Material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories.
2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.
3> Fragrance And Spices: Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.
4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, resins, additives, and other intermediates.
5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion.
6> Pharmaceutical Intermediates: The so-called pharmaceutical intermediates, refers to the production of pharmaceutical products in the process, the use of raw materials, materials, accessories and other intermediate products.
7> Agricultural Chemicals: Research and agriculture related chemical, including pesticide, plant growth regulator, fertilizer, compound fertilizer, herbicide etc.