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Pentaerythritol tetranitrate

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Pentaerythritol tetranitrate (PETN), also known as PENT, PENTA, TEN, corpent, penthrite (or — rarely and primarily in German — as nitropenta) is one of the most powerful high explosives known. It has a relative effectiveness factor (R.E. factor) of 1.66.[1] PETN can be used as a plastic explosive.[2][3][4][5][6] PETN can also be use as a drug to treat certain heart conditions, such as angina pectoris.[7] In this context, it helps widening blood vessels, which is known as vasodilatation. PETN is among the most widely used substances for vasodilatation.[8]