From Bible Encyclopedia
(Heb. nataph), one of the components of the perfume which was offered on the golden altar (Exo_30:34; R.V. marg., “opobalsamum”). The Hebrew word is from a root meaning “to distil,” and it has been by some interpreted as distilled myrrh. Others regard it as the gum of the storax tree, or rather shrub, the Styrax officinale. “The Syrians value this gum highly, and use it medicinally as an emulsion in pectoral complaints, and also in perfumery.”
stak´tē (נטף, nātāph, “drops” (Job_36:27); στακτή, staktḗ, meaning “oozing out in drops”):
One of the ingredients of the holy ointment (Exodus 30:34; Ecclesiasticus 24:15, margin “opobalsamum,” the King James Version “storax”). The marginal reading is a concession to Jewish tradition, but see Spice, (1). Dioscorides describes two kinds of stacte, one of pure myrrh and one of storax and a fat mixed. See Myrrh. This nātāph must have been either myrrh “in drops,” as it is collected, or some other fragrant gum, similarly collected, such, for example, as gum tragacanth.