DGH - a unique active ingredient

DGH has a double mode of action. It breaks up the biofilm and kills isolated bacteria by membrane disruption. Other than that, it comes along with a good pH stability and and is strong against legionella. It does not need an H 317 labeling.

DGH for PT 6 and PT 11

  • Proven compatibility for water treatment, polymer emulsions and detergents*
  • Broad pH application range (4-12)
  • Chemically stable
  • No formaldehyde, no AOX
  • Within dosage recommendation completely soluble in water
  • BfR approvals for applications with food contact (BfR XIV, BfR XXXVI)
  • No sensitizer -> No H 317 limit
  • Due to cationic nature of DGH the compatibility with anionic or non ionic chemicals should be tested

Special advantages for water treatment

  • Strong against biofilm and legionella
  • Non-oxidizing agent
  • Compatible with chlorine and typical active ingredients in water treatment

* We support the testing & development of DGH in other applications, such as Paints & Coatings or Glues. Please contact us!

Different formulations




N-2000 Antimicrobial


N-2001 Antimicrobial

Preventol DP 1021



DGH formulation with broad application spectrum


More economic solution for water treatment, available in drums, easily flammable

Combination with strong non-oxidizing bactericide: enhanced antimicrobial efficacy

Product composition


35% DGH in dipropylene glycol and propylene glycol


35 % DGH in isopropanol and water


10 % DGH + 


21 % Bronopol in water


Suitable for

  • Water treatment
  • Detergents
  • Polymer Emulsions
  • Water treatment
  • Water treatment
  • Detergents
  • Polymer Emulsions (to be tested)

pH application range


< 9.5


< 9.5


< 9.0


Flash Point




35º C




Frost resistance


Crystallization possible below~ 15°C


Crystallization possible below~ 15°C




Chlorine tolerance






< 5 ppm residual chlorine


Available packaging


1020 kg IBC


193 kg drum


 1134 kg IBC


A surface-active mechanism

DGH controls planktonic bacteria as well as biofilm

  • DGH is a cationic surfactant (hydrophilic head has a '+' charge)
  • The surface activity of DGH is important to control aerobic and anaerobic bacteria (SRB) and biofilm
  • Two modes of action
    1. Kills isolated bacteria by membrane disruption
    2. Breaks up biofilm (especially relevant for Water Treatment)
  • Ideal partner for other actives
  • Dosage level starts at 15 ppm

The surface active properties keep products and systems clean & are also effective against biofilm

Constantly high quality for all its appearances








Flocculation and different colors

Neither the color nor the solids affect the effectiveness. Flocculation does not affect active substance content.


Product may turn turbid and therefore is best suited for opaque applications.


“Frosting” can occur < 15°C. Completely reversible by increasing product temperature.