منابع مشابه
Multigram chromatography-free synthesis of octa(ethylene glycol) p-toluenesulfonate†
Here we report a detailed synthetic procedure for monodisperse octa(ethylene glycol) p-toluenesulfonate, a member of the heterobifunctional oligo(ethylene glycol) derivatives family. The method offers completely chromatography-free workup and purification, resulting in higher yields and a lower cost than any of the alternative strategies. We also introduce several upgrades, simplifying the meth...
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A sensitive and simple HPLC/UV method has been developed and validated for the determination of two potential genotoxic impurities, namely methyl p-toluenesulfonate (MPTS) and ethyl p-toluenesulfonate (EPTS) at trace levels in Pemetrexed sodium API. Applying the concept of threshold of toxicological concern (TTC), a limit of 3 ppm each for both genotoxins was calculated based on the maximum dai...
متن کاملP-12: The Improvement of Sperm Parameters and Chromatin Quality by Vitamin E Supplement in Mice
Background: Vitamin E is believed to be the primary component of the antioxidant system in spermatozoa. There is a relationship between activity of these antioxidant and function of sperm. Vitamins E and C which are belong to non-enzymatic antioxidant are used as a supplemented drug to improve sperm quality and male fertility. The present study was carried out to investigate the positive effect...
متن کاملStudy of the 12 C ( e , e ′ p ) Reaction in a Correlations Dominant Regime with Q
This experiment was motivated by studying short-range nucleon-nucleon correlations via multinucleon knockout reactions—(e, epN). The data were taken in Hall A at Jefferson Lab using the pair of high resolution spectrometers to detect the (e, ep) reaction data, and using a third large acceptance spectrometer called BigBite to detect the second nucleon ejected from the nucleus. The kinematics wer...
متن کاملX-ray structure of racemic glycerol 1,2-(di-11-bromoundecanoate)-3-(-p-toluenesulfonate).
The single crystal x-ray structure of racemic glycerol 1,2-(di-11bromoundecanoate)-3-(p-toluenesulfonate), a sulfolipid analogous to the membrane phospholipids, reveals a folded conformation.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s160053680802607x