ɪts ˈælkɪlˌeɪɾɪŋ ɐbˈɪləɾi ɪz bˈoʊθ ðə sˈoːɹs ʌv ɪts hˈaɪ tɑːksˈɪsᵻɾi ænd ðə fˈiːtʃɚ ðæt mˌeɪks ɪɾ ɐ jˈuːsfəl ˌɪntɚmˈiːdiət ɪn ɔːɹɡˈænɪk sˈɪnθəsˌɪs.
Its alkylating ability is both the source of its high toxicity and the feature that makes it a useful intermediate in organic synthesis.