Remedies for breach of any obligation or promise collateral or ancillary to a contract for sale are not impaired by the provisions of sections 1302.01 to 1302.98, inclusive, of the Revised Code.
Remedies for breach of collateral contracts not impaired - UCC 2-701
Ohio Rev. Code Ann. § 1302.75, under Sales.
Ohio Rev. Code Ann. § 1302.75