POWER OF ATTORNEY

	KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes
and appoints each of Brian William Bichkoff and Stephanie Jane Pacitti, signing
singly, as the undersigned?s true and lawful authorized representatives and
attorneys-in-fact to:

(1)	execute for and on behalf of the undersigned, in the undersigned?s
capacity as an executive officer of Stepan Company (?the Company?), Forms 3,
4 and 5, and any and all amendments thereto, in accordance with Section 16 of
the Securities Exchange Act of 1934, as amended (the ?1934 Act?), and the
rules and regulations promulgated thereunder;

(2)	do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete the execution of any such form
or schedule and the timely filing of such form or schedule with the United
States Securities and Exchange Commission and any stock exchange or stock
market or other authority; and

(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorneys-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorneys-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorneys-in-fact may approve
in such attorneys-in-fact?s discretion.

	The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform all and every act and thing whatsoever
requisite, necessary or proper to be done in the exercise of any of the
rights and powers herein granted, as fully to all intents and purposes as
the undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorneys-in-fact, or such attorneys-in-fact?s substitute or substitutes,
shall lawfully do or cause to be done by virtue of this power of attorney and
the rights and powers herein granted.  The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming any of the
undersigned?s responsibilities to comply with Section 16 or any other provision
of the 1934 Act.

	This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned?s holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 7th day of December, 2018.


/s/ Janet A. Catlett
Janet A. Catlett