all-trans-3,4-Didehydro Retinoic Acid Price Not Available 1mg all-trans-3,4-Didehydro Retinoic Acid Supplier Page Catalog Number R047125 Molecular Formula C20H26O2 CAS# 4159-20-0 Purity ≥95% Inchi InChI=1S/C20H26O2/c1-15(8-6-9-16(2)14-19(21)22)11-12-18-17(3)10-7-13-20(18,4)5/h6-12,14H,13H2,1-5H3,(H,21,22)/b9-6+,12-11+,15-8+,16-14+ Inchi Key SYESMXTWOAQFET-YCNIQYBTSA-N SMILES CC1=C(C(CC=C1)(C)C)C=CC(=CC=CC(=CC(=O)O)C)C Size 1mg Supplier Page https://www.musechem.com/product/R047125.html