The chemical omega-Agatoxin IVA has a designated molecular formula of C217H360N68O60S10 and a molecular weight of 5202.283 g/mol. Synonyms may include: omega-Aga-IV A, omega-Agatoxin IV A (funnel-web spider venom), omega-Agatoxin IVA (reduced), cyclic (4-20),(12-25),(19-36),(27-34)-tetrakis(disulfide), SNX 290 (ChemID). omega-Agatoxin IVA has been assigned a MeSH pharmacological action of: Calcium Channel Blockers.