نتایج جستجو برای: phthalic acid esters
تعداد نتایج: 762134 فیلتر نتایج به سال:
An efficient approach for the synthesis of norbuprenorphin derivatives through coupling of enkephalins and norbuprenorphine intermediate is described. Norbuprenorphine derivative was synthesized from thebaine and then, its reaction with succinic acid and phthalic acid was also studied. Meanwhile, the synthesis of enkephalins was done using solid phase peptide synthesis approach. Furthermore, af...
A latex pellet fraction from Euphorbia lathyris incorporates mevalonate into triterpenols and their fatty acid esters. Conditions for improved incorporation were determined. CaCl(2) or CaCl(2) plus MnCl(2) stimulated biosynthesis, and the metal ion chelator, ethylenebis(oxyethylenenitrilo)tetraacetic acid (EGTA) enhanced stimulation. Ethylenediaminetetraacetic acid was almost as effective as EG...
Dibutyl phthalate (DBP) is a phthalic acid ester and is widely used in polymeric products to make them more flexible. DBP is found in almost every plastic material and is believed to be persistent in the environment. Various analytical methods have been used to measure DBP in different matrices. Considering the ubiquitous nature of DBP, the most important challenge in DBP analyses is the contam...
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