<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED CONDENSED FINANCIAL STATEMENTS OF T CELL SCIENCES, INC. FOR THE
NINE MONTHS ENDED SEPTEMBER 30, 1995 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               SEP-30-1995
<EXCHANGE-RATE>                                      1
<CASH>                                       6,230,896
<SECURITIES>                                         0
<RECEIVABLES>                                  425,566
<ALLOWANCES>                                  (21,000)
<INVENTORY>                                    521,969
<CURRENT-ASSETS>                             7,735,490
<PP&E>                                       4,369,914
<DEPRECIATION>                             (3,074,133)
<TOTAL-ASSETS>                              11,672,559
<CURRENT-LIABILITIES>                        1,828,331
<BONDS>                                              0
<COMMON>                                        17,112
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                   9,645,543
<TOTAL-LIABILITY-AND-EQUITY>                11,672,559
<SALES>                                      1,820,043
<TOTAL-REVENUES>                             3,149,471
<CGS>                                        1,448,529
<TOTAL-COSTS>                               10,287,406
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           (486,106)
<INCOME-PRETAX>                            (8,100,448)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (8,100,448)
<EPS-PRIMARY>                                    (.47)
<EPS-DILUTED>                                    (.47)