Reactive Red 22 Chemical Name. Reactive Red 22 C.I. No. 14824 CAS No. 19526-81-9 Synonyms. Dyactive Red W-RB, Remazol Red B, Simactive Red 25036, Sumifix Red B 150% gran. Molecular Formula C19H16N2Na2O11S3 Molecular Weight 590.51