Diammonium Dithiodiglycolate

(Diammonium Dimercaptodiacetate) CAS# 68223-93-8, EC# 269-323-4


Diammonium Dithiodiglycolate has been developed as an additive to be used in hair perm formulations together with the Ammonium Thioglycolate.

In the early 1940s Thioglycolic Acid was developed  by Dr. Ralph Evans in Hoboken, New Jersey, as an active material for cold wave permanents. Today mainly TGA saltssuch as Ammonium Thioglycolate or Monoethanolamine Thioglycolate are used.


Ammonium Thioglycolate's unique reducing properties of the SH-group opens the sulfur bridges in the ceratine structure of the hair. If this is done when the hair is wrapped around hair rollers, the hair structure is weakened. During this redox reaction Diammonium Dithiodiglycolate is formed. If the formulation already contains some Diammonium Dithiodiglycolate in an equilibrium this leads to an extended time window for the application to reach a certain perm strength.

After rinsing in a second step the sulfur bridges are reconnected with an oxidizing chemical like hydrogenperoxide and the hair fibre gets its desired curled shape. These properties of Ammonium Thioglycolate together with Diammonium Dithiodiglycolate allow the confortable use in hair perms.

Production Facilities

As leading producers of Diammonium Dithiodiglycolate BRUNO BOCK and EVANS CHEMETICS are providing state of the art quality from their production facilities in Marschacht, Germany (near Hamburg), and Waterloo New York, USA and excellent customer service from their sales offices in Marschacht and Teaneck, New Jersey, in the USA.


Diammonium Dithiodiglycolate is produced by BRUNO BOCK / EVANS CHEMETICS as high purity solution to be used in cosmetic applications like hair perms.

Diammonium Dithiodiglycolate

Product Name



Diammonium Dithiodiglycolate48 % (40 % DTDGA)


Products SDS Datasheet
    Diammonium Dithiodiglycolate