Melatonin-d4 Price Not Available 25mg Melatonin-d4 Supplier Page Catalog Number R006675 Molecular Formula C13H16N2O2 CAS# 66521-38-8 Purity ≥98% Inchi InChI=1S/C13H16N2O2/c1-9(16)14-6-5-10-8-15-13-4-3-11(17-2)7-12(10)13/h3-4,7-8,15H,5-6H2,1-2H3,(H,14,16)/i5D2,6D2 Inchi Key DRLFMBDRBRZALE-NZLXMSDQSA-N SMILES CC(=O)NCCC1=CNC2=C1C=C(C=C2)OC Size 25mg Supplier Page https://www.musechem.com/product/R006675.html