3, 5-dichloro-4-pyridone-n-acetic acid(dcpa) cas no.:56187-37-2 molecular formula:c7h5cl2no3 molecular weight:222.03 appearance:white or yellowish crystalline powder use:the intermediate of cefazedone hiwe supply pharmaceutical intermediates , diabetes drug, etc with high quality and competitive price. Hope to cooperate with you! pls contact with nora dot z dot sihuan at foxmail dot comnora zhang