Researchers led by University of Wisconsin, Madison, chemist James Dumesic had previously come up with a way to accomplish this second chemical conversion step, efficiently transforming a plant-derived compound called HMF into alkenes, some of the hydrocarbons found in gasoline.
What's even more galling is that the company responsible, Freedom Industries, knew for two weeks about the presence of this second chemical in the muck that leaked out of its storage tank but held that information back from state and federal regulators until last week.
Based on both HPLC/HRMS, MS/MS, and MS analysis, we propose that this second chemical is 2,2-bis chloromethyl propane-1,3-diyl tetrakis(1-chloropropan-2,2-bis chloromethyl propane-1,3-diyl
This is the third chemical in the fertilizer description.
So you administer the first chemical (sodium pentothal), then a flush, then the second chemical (pancuronium), then a flush, then the third chemical (potassium chloride) and then a final flush at the end.
This is the first chemical imaging study of nanocellulose materials using synchrotron-based vibrational spectroscopy.
This forms the first chemical dataset in our study.
To the best of our knowledge this is the first chemical characterization, antituberculosis activity and acute toxicity evaluation of Annona sylvatica.
34 In conclusion, we performed in this study the first chemical synthesis of the modified cell-wall precursors depsi-lipid I (3) and its analogue 4.
To the best of our knowledge, this is the first chemical characterization, evaluation of antitubercular activity, and analysis of the in vivo acute toxicity of the A. sylvatica methanolic extract.
