Xethanol Corp. has replaced Christopher d’Arnaud-Taylor as chief executive officer.
The new boss is Louis B. Bernstein, a member of Xethanol’s board and a retired assistant general counsel at Pfizer Inc. Xethanol said Bernstein would run the company on an interim basis while it searches for a permanent CEO, as well as a chief operating officer.
A spokesperson for Xethanol (XNL: AMEX) told Reuters that d’Arnaud-Taylor will remain an adviser to the company.
A standard background check shows that Bernstein has been a Xethanol director since June 2005, a few months after the company went public through a reverse merger with Zen Pottery Equipment Inc. of Denver. He recently retired from Pfizer after 30 years of service.
Bernstein also is a director at United Energy Corp., a New Jersey company that sells specialty chemicals used in oil and gas production, photo finishing and other fields. He joined its board in September 2003.
A check of United Energy’s SEC filings shows that five people connected to that company also have ties to Xethanol.

Xethanol Corp. bills itself as a biotechnology-driven ethanol company that can turn wood chips, corn stalks and paper sludge into cheap alternative fuel.
Xethanol’s SEC filings refer to him as W. Scott Smith and do not mention his past. We confirmed that he was the same person by comparing address records, birthdates, Social Security numbers and other identifying information.