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1 Method for preparing 2,3,5-trimethyl hydroquinone diester.
2 The products were identified TLC as monoester and diester.
3 PSS is one kind of sodium amylase diester sodium that takes sodium alginate as raw material, which has the characteristic of anti-cruor, reducing the viscidity of blood fat and blood.
4 There were obvious retention on diester and tri-ester of correlation in starch phosphate ester and there was little retention in monoester.
5 METHODS: The contents of total alkaloids, diester diterpenoid alkaloids and polysaccharides were measured by acid dye colorimetry, HPLC and sulphuric acid-anthrone colorimetric method respectively.
6 The present invention relates to a succinic diester polymer which is used in the preparation of water-in-oil macroemulsions.
7 The invention also relates to diester preparation and the use thereof as base oil of lubricating oil.
8 Methods: Diester, diimide and dipeptide mimic compounds were synthesized by conjugated the amino groups and acid groups with diols or diacids links.
9 The paper discusses the preparation of stearic bicine diester for sizing agent and its application in paper-making.
10 The invention relates to a method for preparing a novel diester, which comprises steps of synthesis using immobilization lipase catalyzed by biprotic fatty acid and monohydric fatty alcohol.
11 Nonylphenol polyoxyethylene ether was esterified with maleic anhydride and then sulfonated with sodium bisulfite to form nonylphenol polyoxyethylene ether sulfosuccinic acid diester sodium salt.
12 By controlling the centrifugal parameter, the author did centrifugal experiment on diester–based magnetic fluids and gained magnetic fluids on different diameter range.
13 Investigation has also been made on the influences (?) organic monoester and diester electron donors on catalyst composition and activity as well as polymer morphology.
14 Ingredients: Deionized water, glycerin, stearic acid, myristic acid, lauric acid, potassium hydroxide, amino acid surfactant, ethylene glyceryl diester, imidazolidinyl urea, essence, etc.
15 Objective: To detect expression of interleukin- 23 (IL- 23) and IL- 12 subunits in various leukemia cell lines and evaluate the ability of phorbol diester to up- regulate the subunits expression.
16 Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.
17 The modification of synthesizing processes of phosphates with P2O5 and testing method of the content of monoester and diester were introduced briefly.
18 The present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.
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