1,3-Benzodioxole-5-sulfonylchloride (CAS NO.115010-10-1) is also called as Otava-bb bb7020430867 ; Benzo[1,3]dioxole-5-sulfonyl chloride ; 1,3-Benzodioxole-5-sulphonyl chloride ; 1,3-Benzodioxole-5-sulphonyl chloride 97% .