Chemical name of morphine?

What is the chemical name of morphine?

Morphine’s chemical name is (5α,6α)-7,8-didehydro-4,5-epoxy-17-methylmorphinan-3,6-diol.

Common alternate naming you might see

You may also see morphine referred to by its systematic IUPAC-style naming variants in different references, but they refer to the same compound (the morphinan scaffold with the same core functional groups).

Why “chemical name” can differ between sources

Different databases may format the name differently (stereochemistry notation, numbering style, or epimer descriptors). The underlying structure is the same even when the written form varies.