Definition: Two-ring crystalline hydrocarbons isolated from coal tar. They are used as intermediates in chemical synthesis, as insect repellents, fungicides, lubricants, preservatives, and, formerly, as topical antiseptics.
2,3-naphthalenedicarboxaldehyde [ 2,3-NDA,2,3-naphthalenedicarbaldehyde,naphthalene-2,3-dialdehyde,naphthalene-2,3-dicarboxaldehyde ] used in colorimetric determination of cholesterol; RN from CA Form Index Vol 90; N1 same as NM