Polyfunctional disulfide compound
CA 1134830 A · Owner: Toyo Jozo Kaubshiki Kaisha · Inventors: Kotani, Kikuo; Nakagawa, Nobuaki; Watanabe, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel polyfunctional disulfide compound of the formula, where R is 2-benzothiazolyl or 2-pyridyl-N-oxide and X is a, spacer group having an alkylene group directly bound to the S-S group, is disclosed. It is useful as a crosslinking reagent having S-S exchange reactivity and which exhibits two different stepwise reactivities for compounds having a thiol group, and therefore is useful as a crosslinking agent for bound complexes of an enzyme and hapten antigen or antibody, and as an immobilizing agent for an enzyme or hapten and a carrier.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.