... -hydroxy-3-oxo-17a-pregna-4,6-diene-21-carboxylic acid gamma-lactone CAS NO: 976-71-6 Molecular weight: 340.46 Molecular ... 20 million Main product:Cinnamic series, Cinnamic acid, Cinnamic alcohol, Cinnamic aldehyde, Vitamin & Amino acid, Plant extracts, Food additives, Pharmaceutical Products E ...