New volatile barium precursors based on pivaloyltrifluoroacetone are obtained and studied. The results of X-ray structure determination of two compounds are given.

We have studied the effects of cleistanthin A and cleistanthin B, phytoconstituents isolated from the leaves of Cleistanthus collinus Roxb. (Euphorbiaceae), on blood pressure, electrocardiogram, and barium chloride-induced arrhythmia in Wistar rats. The two compounds were isolated by column chromatography and their identity was confirmed spectroscopically. A healthy, male Wistar rat was used to...

Eight new barium methylphosphonates were prepared and described. In dependence on pH, either barium hydrogen methylphosphonates or barium methylphosphonates can be formed. In the case of barium methylphosphonates, BaCH3PO3·3H2O crystallizes from the solution at room temperature and BaCH3PO3·H2O at a temperature above 65 °C. On heating, these hydrates form two anhydrous barium methylphosphonates...

A procedure has been worked out for the fractionation of the acidsoluble P compounds of liver for use in tracer experiments. Like all similar fractionations, e.g., those of LePage (6) and Kaplan and Greenberg (3), it is based principally on differences in the solubilities of the alkaline earth salts of these compounds and in their susceptibility to hydrolysis. LePage separates the “barium-insol...

BACKGROUND AND PURPOSE With the rise in detection of small renal masses that are amenable to nephron-sparing surgical approaches, there has been an increasing need for renal tumor models that create discrete lesions suitable for training exercises. We aim to investigate a handful of commonly used compounds, subjectively evaluating their ease of implementation and imaging characteristics. MATE...

Barium and Compounds Substance File (IRIS Ba File). The influential information contained in this file fails to comply with the OMB " Guidelines for Ensuring and Maximizing the Quality, Objectivity, Utility, and Integrity of Information Disseminated by Federal Agencies ". The information disseminated in EPA's IRIS Barium and Compounds file directly contradicts the information published by EPA i...