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Petroleum ether is the petroleum fraction consisting of C₅ and C₆ hydrocarbons and boiling in the range 35‒60 ℃; commonly used as a laboratory solvent.
P 1450 (OTTO) Petroleum ether 40-60 °C for HPLC & Spectroscopy Cas 8032-32-4- used by pharmaceutical companies and in the manufacturing process.