EX-23 4 dex23.txt CONSENT OF DELOITTE & TOUCHE LLP EXHIBIT 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 333-62566 on Form S-8, Registration Statement No. 333-53449 on Form S-8, Amendment No. 2 to Registration Statement No. 33-52196 on Form S-3 and Registration Statement No. 333-49883 on Form S-4 of American Pacific Corporation of our report dated November 13, 2001 appearing in this Annual Report on Form 10-K of American Pacific Corporation for the year ended September 30, 2001. /s/ Deloitte & Touche LLP Las Vegas, Nevada November 30, 2001