Spectra of the 17 lines from organic molecules identified in IRAS 4A with ALMA at 1.2 mm, corresponding to the continuum peak coordinates of A1 (green) and A2 (black). Except for CH₃OCH₃(13_5,8 − 13_4,9), whose three blended lines are indicated with vertical blue lines, the Gaussian fits to all the lines observed in A2 are depicted in blue (see Table 2). Nearby molecular lines are labelled in red.