white to light yellow powder; > 98.5% CAS No. 7681-54-1 Chemical Name: INDOMETHACIN SODIUM Synonyms: 1-( 4-chlorobenzoyl) -5-methoxy-2-methyl-1h-indole-3-aceticacisodiumsalt; 1-( p- chlorobenzoyl) -5-methoxy-2-methyl-indole-3-aceticacisodiumsalt; osmosin; sodiu m1-( 4-chlorobenzoyl) -5-methoxy-2-methyl-1h-indole-3-acetate; sodiumindomethac in; INDOMETHACIN SODIUM; 1-( 4-Chlorobenzoyl) -5-methoxy-2-methyl-1H-indole-3-acetic acid sodium salt CBNumber: CB7121243 Molecular Formula: C19H15ClNNaO4