The substance was synthesized from P-hydroxybenzoic acid through three steps.
该物质以对羟基苯甲酸为原料，经三步合成。
Seven methods of synthesis ofm-hydroxybenzoic acid(1) were reviewed and their advantages and disadvantages were also discussed in this paper.
介绍了七种合成间羟基苯甲酸（1）的方法，并对这些方法的优缺点进行了讨论。
Nipagin esters were synthesized by the esterification of dodecyl and octadecyl alcohol with p -hydroxybenzoic acid in the presence of vitamin C.
以维生素C为催化剂， 对羟基苯甲酸和十六醇及十八醇为原料合成尼泊金十六酯与尼泊金十八酯。
In this paper, the strong acid ion exchange resins have been studied as the solid-acid catalyst for the esterification of 4-hydroxybenzoic acid.
本文研究了一种固体酸催化剂—阳离子交换树脂催化剂，用于对羟基苯甲酸的酯化反应。
The compound, 3-amino-5-hydroxybenzoic acid(AHBA), is the specific and indispensible starter unit for the biosynthesis of ansamycins in microbes.
氨基-5-羟基苯甲酸（AHBA）是微生物产生安莎类抗生素及其相关抗生素的必需前体。
The present invention uses the 2-hydroxybenzoic acid derivative represented by the specific chemical formula or its pharmaceutically acceptable salt.
本发明使用由具体化学式表示的2- 羟基苯甲酸衍生物或其药学上可接受的盐。
INGREDIENTS: Deionized water, hydrogenated poly-decene, methyl p-hydroxybenzoate p-hydroxybenzoic acid propyl, acrylic acid copolymer, mineral oil, daily flavor.
主要成份：去离子水、氢化聚癸烯、对羟基苯甲酸甲酯、对羟基苯甲酸丙酯、丙烯酸共聚物、矿物油、香料。
Methods The substance was synthesized from P-hydroxybenzoic acid through three steps, those are etherification, preparation of acyl halide and amidation of the raw material.
方法以对羟基苯甲酸为原料，经三步合成，即原料的醚化、酰氯制备和酰胺化。
The formula and structural formula as to complex compound which was formed by reaction of 2-methylimidazole, O-hydroxybenzoic acid and zinc have been stud. ed by using IR, NMR, and MS.
本文运用IR、NMR、MS等分析测试手段，研究了2-甲基咪唑和水杨酸与锌的络合物的分子式和结构式。
Structural analogs, such as phenol, p-hydroxybenzoic acid and p-aminobenzoic acid, only small responses electrode were observed. Moreover, structural unanalog vitamin C had almost no response.
对结构相似的苯酚、对羟基苯甲酸、对氨基苯甲酸等响应不灵敏，对结构差异较大的如维生素C等几乎无响应。
Structural analogs, such as phenol, p-hydroxybenzoic acid and p-aminobenzoic acid, only small responses electrode were observed. Moreover, structural unanalog vitamin C had almost no response.
对结构相似的苯酚、对羟基苯甲酸、对氨基苯甲酸等响应不灵敏，对结构差异较大的如维生素C等几乎无响应。
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