hematin
he.ma.tin \'hem-*t-*n, 'he--m*t-\ n 1: HEMATEIN 2a: a brownish black or bluish black derivative C34H32N4O 4FeOH of oxidized heme; also : any of several similar compounds 2b: HEME
he.ma.tin \'hem-*t-*n, 'he--m*t-\ n 1: HEMATEIN 2a: a brownish black or bluish black derivative C34H32N4O 4FeOH of oxidized heme; also : any of several similar compounds 2b: HEME