Daminozide(B-NINE/B9) CAS 1596-84-5 also called as B9, regulator, is a kind of plant growth regulator inhibitor, rubber company successfully developed in 1962 by the United States, its role is to prevent cell division, inhibition of cell elongation, dwarf seedlings, and can increase drought resistance of the crops.

Daminozide is a succinic acid plant growth regulator, which can delay the senescence of leaf lettuce and inhibit the decay and discoloration of mushrooms, but has less effect on cauliflower and asparagus asparagus. Daminozide can preserve chlorophyll in plants and prolong the life of some perishabl