Tris(hydroxymethyl)aminomethane

Tris(hydroxymethyl)aminomethane (CAS 77-86-1), commonly known as Tris or Tromethamine, is an organic amine base used across pharmaceutical, cosmetic, and life science manufacturing. It functions primarily as a pH buffering and neutralizing agent.

This versatile compound maintains stable pH conditions in formulations and biological systems where precise control is critical. In pharmaceutical manufacturing, Tromethamine is used to neutralize acidic drug substances and as a buffering agent.

It is frequently utilized in injectable formulations, ophthalmic solutions, and topical preparations. Cosmetic formulators use Tris to adjust and stabilize pH in creams, gels, and emulsions, particularly where carbomer polymers require neutralization.

Biotechnology and life science applications rely on Tris buffers, most notably Tris-HCl, as the standard medium for DNA/RNA electrophoresis. It is also essential for protein extraction and cell lysis protocols in laboratory settings.

The material functions as a preservative booster in certain personal care systems, enhancing the efficacy of primary preservatives at controlled pH ranges. This makes it a valuable additive for long-term product stability.

Tris(hydroxymethyl)aminomethane is supplied as a white crystalline powder. It is available in USP, Ph.Eur., and BP grades for pharmaceutical use, as well as high-purity molecular biology grades for research.

These specialized grades meet specific electrophoresis and buffer preparation standards. Technical grade is also available for industrial pH adjustment applications where high-purity pharmaceutical standards are not required.