Exhibit 24.3
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                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

That each person whose signature appears below, as a Director or
Officer of MONCHEM, INC. (the "Company"), a Delaware corporation with
offices in the County of St. Louis, Missouri, does hereby make, constitute
and appoint Karl R. Barnickol and Karen L. Knopf, or either of them acting
alone, to be his or her true lawful attorney-in-fact and agent, with full
power of substitution and resubstitution, in his or her name, place and
stead, in any and all capacities, to sign the Registration Statement on
Form S-3 and any and all amendments thereto to be filed with the Securities
and Exchange Commission (the "Commission") under the Securities Act of 1933,
as amended (the "Act"), including any subsequent registration statement
filed pursuant to Rule 462(b), covering the registration of senior and
subordinated debt securities, guarantees of debt securities, common stock,
preferred stock, or any hybrid or combination thereof, equity purchase
contracts, and equity purchase units ("Securities"), including without
limitation, warrants or other rights to purchase Securities and
Securities convertible into other Securities, to be issued from time
to time after the Registration Statement becomes effective, giving and
granting unto said attorneys full power and authority to do and perform
such actions as fully as they might have done or could do if personally
present and executing any of said documents.

Dated and effective as of the 26th day of February, 2002.


                                    /s/ Kevin Wilson
                                    -------------------------------
                                    C. Kevin Wilson
                                    President and Director
                                    (Principal Executive Officer)


                                    /s/ J.F. Quinn
                                    -------------------------------
                                    Jeff F. Quinn
                                    Vice President, Treasurer and
                                    Director (Principal Financial
                                    and Accounting Officer)


                                    /s/ J.M. Sullivan
                                    -------------------------------
                                    James M. Sullivan
                                    Director