COF-999 (IMAGE) University of California - Berkeley Caption A vial of COF-999, which is yellow, with UC Berkeley's landmark campanile in the background. Credit Zihui Zhou, UC Berkeley Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.