ɪn ɔːɹɡˈænɪk sˈɪnθəsˌɪs, lˈænθænəm tɹˈɪkloːɹˌaɪd fˈʌŋkʃənz æz ɐ mˈaɪld lˈuːɪs ˈæsɪd fɔːɹ kənvˈɜːɾɪŋ ˈældɪhˌaɪdz tʊ ˈæsɪɾəlz.
In organic synthesis, lanthanum trichloride functions as a mild Lewis acid for converting aldehydes to acetals.