CAS 66-97-7 appears in our catalog under these names: Psoralen, 97% , Psoralen, Psoralen, >95% (HPLC), Psoralen/ 99.3% (existing batch purity), Psoralen, >99.0%(GC). Offered by: Thermo Scientific (Alfa Aesar), Mikromol, TRC, GLPBio, TargetMol. Available pack sizes: 100mg, 250mg, 10mg, 25mg, 50mg, 20mg, 500mg, 10g.