苯甲酸

This investigation provided an environment-friendly process for the synthesis of methyl anthranilate.

摘要提供了一种环境友好工艺制备香料邻氨基甲甲酯。

Water (Aqua), Glycerin, Propylene Glycol, Hydroxyethylcellulose, Tetrasodium EDTA, Citric Acid, Sodium Benzoate.

水（水） ，甘油，丙二醇，羟乙基纤维素， Tetrasodium乙二胺四乙，柠，甲钠。

It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.

确定以硫二甲酯为N——甲基化剂,对对氨基甲PABA进行N——二甲基化.

A simultaneously potentiometric titration method for determining benzaldehyde and benzoic acid in electrosynthesis products was reported.

采用电位滴定法测定甲电产物中甲醛和甲,研究了盐羟胺用量、甲醇和甲含量对测定影响。

Thioxanthone photoinitiator was synthesized from DTSA by chlorination and condensation with isopropylbenzene in the presence of anhydrous AlCl3.

以二硫代二甲(DTSA)经过酰氯化、氯代、然后与异丙在三氧化铝催化下缩为光引发剂。

Xanthone was efficiently synthesized from o-chlorobenzoic acid first by etherization and then by Friedel-Crafts reaction in the presence of aluminium trichloride.

以邻氯甲为原料,先进行醚化,再在三氯化铝作用下进行傅-克反应,可简洁、高效呫吨酮。

OBJECTIVE: To study the effects of different dispersing media, such as atolin and ethyl benzoate, on sustained-release properties of chitosan microspheres.

观察液体石蜡和甲乙酯作为分散介质对壳聚糖载药微球缓释性能影响。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋溶液中,以间氯甲醛、溴钾为原料间氯甲,分别研究了反应温度、反应时间、原料配比、溶剂用量等条件对反应影响,确定了最佳工艺条件。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯甲和对乙氧基胺为原料,经过胺基化、二芳胺环化、N-烷基化、硫代化反应了N-丁基-2-乙氧基硫代吖啶酮。

Hordenine propyl formate and chemical osmosis are the two ways of extracting Glutathione(GSH) from yeast have been introduced and compared in this review.

介绍了从酵母中分离纯化谷胱甘肽(GSH)两种抽提方法:对羟基甲丙酯法和化学渗透法,并对其进行了对比。

Citral was synthesized by catalytical rearrangement of dehydrolinalool in toluene solution with the present of molybdenyl acetylacetonate, benzoic acid and dimethyl sulfoxide (DMSO).

摘要采用脱氢芳樟醇为原料，在乙酰丙酮钼、甲、二甲基亚砜(DMSO)甲溶液中催化重排柠醛，考察了柠醛在不同体系中热敏性。

Three open crown ethers were synthesized for the first time by using parathesin as the terminal group.They were characterized by IR, 1HNMR ,MS and EA.

以对氨基甲乙酯为端基了3种酰胺型开链冠醚,并通过IR、~1HNMR、MS和元素分析确证了它们结构。

Using lead benzoxy as curing agent,cured epoxy resin was analyzed by means of IR spectrum and DSC curves.Lead benzoxy was considered to be catalytic curing agent.

采用甲铅做固化剂，通过对环氧树脂固化物红外光谱及DSC曲线分析，认为甲铅是一种催化型固化剂。

Abstract： Using lead benzoxy as curing agent,cured epoxy resin was analyzed by means of IR spectrum and DSC curves.Lead benzoxy was considered to be catalytic curing agent.

摘 要： 采用甲铅做固化剂，通过对环氧树脂固化物红外光谱及DSC曲线分析，认为甲铅是一种催化型固化剂。

This work applied the new type capillary column modified by barium sulfate. It has completed the solubilty of high boiling ester in para-methyl-toluate with the method of chromatography.

研究了硫钡微晶改性新型毛细管柱应用.可用于色谱法测定完全互熔性高沸点酯类在对甲基甲甲酯中溶解度.