In a press release published July 9, 2013 on the webpage of the University of Massachusetts Lowell (UMass Lowell), scientists from the university state that they have identified a promising bisphenol A (BPA) alternative. The alternative is known as bis(epoxide) of 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO). Daniel Schmidt, associate professor of plastics engineering at UMass Lowell, contends that the evaluation is still ongoing. Yet, so far the substance shows no hormone activity in published tests and bears no structural resemblance to estrogen or other hormones. According to Schmidt, the substance can be used to produce an economical, high performance epoxy resin.