Specialty Chemicals (Compounds are not offered for sale in the countries where they are protected by patents) L(+)-Menthol CAS No.: 2216-51-5 2,3-Dihydrophthalazine-1,4-dione OR Phthalazine-1,4-dione CAS No.: 20116-64-7 4-Cynoethyl-2-methyl Phenol CAS No.: 22516-99-0