<ARTICLE> 5 <CIK> 0001010915 <NAME> MICROCIDE PHARMACEUTICALS, INC. <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JUL-01-2000 <PERIOD-END> SEP-30-2000 <CASH> 2,785 <SECURITIES> 12,439 <RECEIVABLES> 612 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 16,308 <PP&E> 20,391 <DEPRECIATION> (14,152) <TOTAL-ASSETS> 23,404 <CURRENT-LIABILITIES> 3,910 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 68,296 <OTHER-SE> (49,788) <TOTAL-LIABILITY-AND-EQUITY> 23,404 <SALES> 0 <TOTAL-REVENUES> 1,454 <CGS> 0 <TOTAL-COSTS> 5,227 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 59 <INCOME-PRETAX> (3,563) <INCOME-TAX> 0 <INCOME-CONTINUING> (3,563) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,563) <EPS-BASIC> (0.31) <EPS-DILUTED> (0.31)