As far as I can tell, you can't. I have an unopened package of it that contains 3 1 ml. vials, but the expiration date was October, 1986.
If it will help your research (I'm doing mine right now), the package says that it was manufactured by Riker Laboratories, Inc., Northridge, California 91324, under U.S. government license number 372, and was manufactured for E.D. Bullard Company, Sausalito, California 94965.