, ▁is ▁shown ▁on ▁Coast ▁Guard ▁lists ▁and ▁NO AA ▁charts ▁as ▁I ps wich ▁Light . ▁It ▁displays ▁a ▁white ▁light ▁which ▁occ ult s ▁once ▁every ▁ 4 ▁seconds . ▁ ▁References ▁▁ ▁Category : L ighth ouses ▁completed ▁in ▁ 1 8 8 1 ▁Category : L ighth ouses ▁completed ▁in ▁ 1 8 3 8 ▁Category : L ighth ouses ▁completed ▁in ▁ 1 9 3 8 ▁Category : T ow ers ▁completed ▁in ▁ 1 9 3 8 ▁Category : L ighth ouses ▁in ▁Es sex ▁County , ▁Massachusetts ▁Category : 1 8 8 1 ▁establish ments ▁in ▁Massachusetts <0x0A> </s> ▁Ira ze pine ▁( Ro ▁ 7 - 1 9 8 6 / 1 ) ▁is ▁a ▁ben z odia ze pine ▁derivative ▁containing ▁is oth i oc yan ate ▁functional ▁group . ▁It ▁is ▁a ▁non - comp et itive ▁ben z odia ze pine ▁binding ▁site ▁ant agon ist . ▁Ira ze pine ▁and ▁other ▁alk yl ating ▁ben z odia ze pine , ▁k en az ep ine , ▁bind ▁to ▁brain ▁ben z odia ze pine ▁re cept ors ▁in ▁a ▁non - comp et itive ▁( c oval ent ) ▁fashion ▁in ▁vit ro , ▁and ▁may ▁ex ert ▁a ▁long - last ing ▁ant icon v uls ant ▁effect . ▁ ▁References ▁▁ ▁Category : Ant icon v uls ants ▁Category : B enz odia ze p ines ▁Category : Ch lor o aren es ▁Category : G AB AA ▁re