7784-34-1 8011-67-4 ARSENIC TRICHLORIDE Arsenic butter Arsenic chloride Arsenic chloride (AsCl3) Arsenic trichloride [UN1560] [Poison] Arsenic(III) chloride Arsenic(III) trichloride Arsenious chloride Arsenous chloride Arsenous trichloride Butter of arsenic Caustic arsenic chloride Caustic oil of arsenic Chlorure arsenieux [French] Chlorure d'arsenic [French] EINECS 232-059-5 Fuming liquid arsenic HSDB 422 Trichloroarsine Trichlorure d'arsenic [French] UN1560