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ISSUER (DEAL NAME)                 MSC

BLOOMBERG TICKER                   MSC 2006-T23
SERIES                             2006-T23
SETTLE DATE MM/DD/YY                                8/3/2006
PAY DAY                                                   12
RECORD DATE MM/DD/YY                               7/31/2006
PRICING SPEED                                              0
CLEAN-UP CALL %                                           1%
CALL DATE
DEAL TYPE                          COMMERCIAL REAL ESTATE
LEAD MANAGER(S)                    Morgan Stanley & Co.

CO-MANAGER(S)                      Bear Stearns Commercial Mortgage
TRUSTEE                            LaSalle Bank



CLASS NAME                           A1             A2            A3           AAB           A4             AM             AJ
ID: CUSIP
ID: ISIN
ID: COMMON
ID: WPK NUMBER
RATING: MOODY
RATING: S&P                          AAA            AAA           AAA          AAA           AAA           AAA             AAA
RATING: FITCH                        AAA            AAA           AAA          AAA           AAA           AAA             AAA

CLASS SIZE                       94,221,000     151,830,000   43,600,000   76,320,000    812,132,000   161,384,000     112,969,000
CURRENCY
MATURITY DATE MM/DD/YY
DATED DATE MM/DD/YY               8/1/2006       8/1/2006      8/1/2006     8/1/2006      8/1/2006       8/1/2006       8/1/2006
FIRST PAY DATE MM/YY              9/12/2006      9/12/2006     9/12/2006    9/12/2006     9/12/2006     9/12/2006       9/12/2006
WAL TO MATURITY                     3.39           4.72          6.83         7.20          9.74           9.92           9.95
CLASS TYPE
COUPON                             5.901%         5.983%        5.983%       5.983%        5.983%         5.983%         5.983%
STEP BP
FLOATER INDEX
FLOATER SPREAD                     -0.082          0.000         0.000        0.000         0.000         0.000           0.000
FLOATER CAP OR AFC
FLOATER FLOOR
PAYMENT DELAY                        11             11            11           11            11             11             11
DAY COUNT                          30/360         30/360        30/360       30/360        30/360         30/360         30/360
PAYMENT FREQUENCY                  Monthly        Monthly       Monthly      Monthly       Monthly       Monthly         Monthly
MIN PIECE/DENOMINATION
IS 144A?
IS REGS?
IS SMMEA?
COLLATERAL GROUP






CLASS NAME                            B             C             D              E              F             G             H
ID: CUSIP
ID: ISIN
ID: COMMON
ID: WPK NUMBER
RATING: MOODY
RATING: S&P                          AA            AA-            A             A-            BBB+           BBB           BBB-
RATING: FITCH                        AA            AA-            A             A-            BBB+           BBB           BBB-

CLASS SIZE                       32,276,000    16,139,000     26,225,000    14,121,000     12,104,000    14,121,000     10,086,000
CURRENCY
MATURITY DATE MM/DD/YY
DATED DATE MM/DD/YY               8/1/2006      8/1/2006       8/1/2006      8/1/2006       8/1/2006      8/1/2006       8/1/2006
FIRST PAY DATE MM/YY              9/12/2006     9/12/2006     9/12/2006      9/12/2006      9/12/2006     9/12/2006     9/12/2006
WAL TO MATURITY                     10.03         10.03         10.03          10.03          10.84         11.86         12.32
CLASS TYPE
COUPON                             5.983%        5.983%         5.983%        5.983%         5.983%        5.983%         5.983%
STEP BP
FLOATER INDEX
FLOATER SPREAD                      0.000         0.000         0.000          0.000          0.000         0.000         0.000
FLOATER CAP OR AFC
FLOATER FLOOR
PAYMENT DELAY                        11            11             11            11             11            11             11
DAY COUNT                          30/360        30/360         30/360        30/360         30/360        30/360         30/360
PAYMENT FREQUENCY                  Monthly       Monthly       Monthly        Monthly        Monthly       Monthly       Monthly
MIN PIECE/DENOMINATION
IS 144A?                              Y             Y             Y              Y              Y             Y             Y
IS REGS?
IS SMMEA?
COLLATERAL GROUP







CLASS NAME                         J           K           L           M           N           O            P             X
ID: CUSIP
ID: ISIN
ID: COMMON
ID: WPK NUMBER
RATING: MOODY
RATING: S&P                       BB+          BB         BB-          B+          B           B-          NR            AAA
RATING: FITCH                     BB+          BB         BB-          B+          B           B-          NR            AAA

CLASS SIZE                     4,035,000   4,034,000   6,052,000   4,035,000   2,017,000   4,035,000   12,104,192   1,613,840,192
CURRENCY
MATURITY DATE MM/DD/YY
DATED DATE MM/DD/YY             8/1/2006    8/1/2006    8/1/2006    8/1/2006    8/1/2006    8/1/2006    8/1/2006       8/1/2006
FIRST PAY DATE MM/YY           9/12/2006   9/12/2006   9/12/2006   9/12/2006   9/12/2006   9/12/2006    9/12/2006     9/12/2006
WAL TO MATURITY                  14.26       14.69       14.69       14.77       14.86       14.87        15.54          8.72
CLASS TYPE                                                                                                          IO, CSTR, NTL
COUPON                           5.743%      5.743%      5.743%      5.743%      5.743%      5.743%      5.743%         0.010%
STEP BP
FLOATER INDEX
FLOATER SPREAD
FLOATER CAP OR AFC
FLOATER FLOOR
PAYMENT DELAY                      11          11          11          11          11          11          11             11
DAY COUNT                        30/360      30/360      30/360      30/360      30/360      30/360      30/360         30/360
PAYMENT FREQUENCY               Monthly     Monthly     Monthly     Monthly     Monthly     Monthly      Monthly       Monthly
MIN PIECE/DENOMINATION
IS 144A?                           Y           Y           Y           Y           Y           Y            Y             Y
IS REGS?
IS SMMEA?
COLLATERAL GROUP