Exhibit 99.5

                                    CONSENT
                                      OF
                    CREDIT SUISSE FIRST BOSTON CORPORATION

Board of Directors
Chase Industries Inc.
14212 County Road M-50
Montpelier, OH

Members of the Board:
We hereby consent to the inclusion of our opinion letter, dated May 7, 2002, to
the Board of Directors of Chase Industries Inc. ("Chase") as Annex 4 to the
Joint Proxy Statement/Prospectus of Chase and Olin Corporation ("Olin") which
forms a part of this Registration Statement on Form S-4 relating to the
proposed merger of Plumber Acquisition Corp., a wholly owned subsidiary of
Olin, with and into Chase and references made to such opinion in the Joint
Proxy Statement/ Prospectus under the captions: "The Summary", "Background to
the Merger", "Chase Reasons for the Merger and the Chase Board of Directors'
Recommendation" and "Opinion of Chase's Financial Advisor." In giving such
consent, we do not admit that we come within the category of persons whose
consent is required under, nor do we admit that we are "experts" for purposes
of, the Securities Act of 1933, as amended, and the rules and regulations
promulgated thereunder.

CREDIT SUISSE FIRST BOSTON CORPORATION

/S/  CREDIT SUISSE FIRST BOSTON

May 23, 2002