Exhibit 23

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-129494) of E.I. du Pont de Nemours and Company of our report dated June 25, 2007 relating to the financial statements of the Thrift and Savings Plan for Employees of Sentinel Transportation, LLC, which appears in the Form 11-K.

/S/ PRICEWATERHOUSECOOPERS LLP

PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
June 28, 2007