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DMDM Hydantoin

Category:Preservative Series

Other Name: 1,3-Bis(hydroxymethyl-5,5-dimethyl-2,4-imidazolidinedione

INCI Name : DMDM Hydantoin

CAS No.:6440-58-0

Molecular Formula: C7H12N2O4

Molecular Weight:188.18

Technical Data Sheet

1.   DMDM Hydantoin is no irritating,no sensitization.

2.   It’s easily dissolved in water,alcohol,glycol and stable in aqueors phase and water solution of oil.

3.   Good compatibility with anionic,cationic, nonionic surfactants and emulsifier agent.

4.   It can effectively constrain various types of bacteria, including Gram-negative bacteria, Gram-positive bacteria,

      fungi, including molds and yeasts ,which is a low cost and highly effective preservative.



Colorless to light yellow clear liquid


Slight characteristic odor

Active matter, wt%

55 Min

Formaldehyde, %


Free Formaldehyde, %

2.0 Max

Water content, %


Nitrogen content, %



2.0 Max

pH value



1.   Widely used in all kinds of shampoos, hand sanitizer, shower gel, skin care, hair care, sun protection,etc.

2.   The recommended dosage :

       ①Concentration 0.2-0.6%.

       ②Temperature <50℃

       ③PH value 3.0-10.0


In an ambient temperature ≤ 5 ℃ storage, may appear less white solid precipitated, when you need to use a little

mixing or heating to above 20 ℃.


●   25Kgs/plastic drum

●   200Kgs/plastic drum


●   Stored in dry and cool place, kept away from sunshine and rain.

●   The ambient temperature for storage should be kept between 10-40℃

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