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- We supplies large amount APIs of Diaminomaleonitrile, mandelic acid and ect. 我公司大量生產(chǎn)二氨基馬來(lái)腈，扁桃酸等醫藥中間體。。。
- The progress in synthesis of chiral mandelic acid and resolution of racemic mandelic acid are reviewed. 綜述了手性扁桃酸的合成及外消旋扁桃酸拆分的研究進(jìn)展。
- Mandelic acid and its analog can be synthesized from aromatic aldehydes and chloroform as raw material with the help of phase transfer catalyst. 以芳香醛和氯仿為原料,經(jīng)相轉移催化反應合成扁桃酸及其類(lèi)似物。
- Heliotropin was synthesized by reacting AgNO_3 with 3,4-dioxymethylene mandelic acid,which was prepared from 1,3-benzodioxole. 研究了以胡椒環(huán)為原料,首先與乙醛酸反應,得中間體3,4-亞甲二氧基苯乙醇酸,然后以硝酸銀對該中間體進(jìn)行氧化脫羧,最后得到洋茉莉醛。
- A novel and accurate HPLC method was developed for the determination of optical purity of mandelic acid(MA) enantiomers. 建立了一種用高效液相色譜(HPLC)測定扁桃酸光學(xué)純度的新方法。
- The aim of this research is to establish a analytical method for the determination of phytic acid , glycolic acid , lactic acid , malic acid and mandelic acid in cosmetics. 本研究目的在于建立植酸、甘醇酸、乳酸、蘋(píng)果酸與杏仁酸之混酸溶液之分析方法。研究中針對管柱的種類(lèi)、移動(dòng)相之種類(lèi)與組成、移動(dòng)相之流速等因素。
- Determines the content of ofloxacin mandelic acid by nonaqueous titration method, the content of three batches of materials medicine is greater than 98.5%. 采用非水滴定的方法測定氧氟沙星扁桃酸鹽含量，三批原料藥的含量均大于98.;5%25。
- During the experiments, it is discovered that chiral phase transfer catalysis deriving from cinchonine or ephedrine hydrochloride can induce the asymmetry synthesis of mandelic acid in the existence of adscititious solvent. 實(shí)驗還發(fā)現,由辛可寧或麻黃堿衍生的手性相轉移催化劑在有外加溶劑時(shí)才能誘導扁桃酸的不對稱(chēng)合成。
- 4-Hydroxy-3-methoxy mandelic acid 4-羥-3-甲氧杏仁酸
- 3-methoxy-4-hydroxy mandelic acid 3-甲氧基-4-羥基苦杏仁酸
- quantitative test of vanillyl mandelic acid 尿定量測定
- 3 -ethoxy-4 -hydroxy mandelic acid 3-乙氧基4堀基苯乙醇酸
- Enzyme-catalyzed optical resolution of mandelic acid 扁桃酸的酶促光學(xué)拆分
- Keywords mandelic acid;hypnone;flow chart;operation process; 扁桃酸;合成工藝;苯乙酮法;
- He gave me a taste of his acid wit. 他讓我嘗到了他敏銳尖刻之機智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把銀器的表面腐蝕了。
- I am doing an experiment of neutralizing acid. 我在做一個(gè)中和酸的實(shí)驗。
- Can Jones beat Smith? That's the acid test. 瓊斯能擊敗史密斯嗎？那是個(gè)嚴峻的考驗。
- Keywords chiral mandelic acid;racemic mandelic acid;synthesis;resolution; 手性扁桃酸;外消旋扁桃酸;合成;拆分;
