Complex sentence: In the early 20th century, picric acid was stocked in pharmacies as an antiseptic and as a treatment for burns, malaria, herpes, and smallpox, most notoriously for the treatment of burns suffered by victims of the Hindenburg disaster in 1937.
Split into simpler sentences: In the early 20th century, picric acid was stocked in pharmacies as an antiseptic and as a treatment for burns, malaria, herpes, and smallpox. It was most notably used for the treatment of burns suffered by victims of the Hindenburg disaster in 1937.