51274-37-4 refers to the product Polyepoxysuccinic Acid
PESA is a green water-soluble polymer with non-phosphor and non-nitrogenn. PESA has good scale inhibition and dispersion properties on calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, calcium fluoride and silicon scale in water, and has good synergistic effect with phosphonate.

PESA is biodegradable and has a wide range of applications, especially for cooling water systems under high alkali, high hardness and high pH conditions, and can achieve high concentration multiple operation. PESA has good compatibility with chlorine and compatibility with other agents.