» Anthralin Ointment is Anthralin in a petrolatum or other oleaginous vehicle. Anthralin Ointment labeled to contain more than 0.1 percent of anthralin contains not less than 90.0 percent and not more than 115.0 percent of the labeled amount of C14H10O3; and Ointment labeled to contain 0.1 percent or less of anthralin contains not less than 90.0 percent and not more than 130.0 percent of the labeled amount of C14H10O3.
Packaging and storage Preserve in tight containers, in a cool place. Protect from light.
USP Reference standards 11
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USP35NF30 Page 2222