21.78—Formula No. 42.
(1) Eighty grams of potassium iodide, U.S.P., and 109 grams of red mercuric iodide, N.F. XI; or
(2) Ninety-five grams of thimerosal, U.S.P.; or
(3) Seventy-six grams of any of the following: phenyl mercuric nitrate, N.F.; phenyl mercuric chloride, N.F. IX; or phenyl mercuric benzoate.
430.Sterilizing and preserving solutions.
812.Product development and pilot plant uses (own use only).