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DMDM Hydantoin (DMDMH)

Basic Information
INCI Adopted Name: DMDM Hydantoin
CAS Registry No.: 6440-58-0
EINECS No. 229-222-8
Molecular Formula: C7H12N2O4
Molecular Weight: 188.18
Structural Formula:
Synonyms: DMDMH;
1,3-Dihydroxymethyl-5,5-Dimethylhydantoin

2. Quality Specification
Item Specification
Appearance Colorless to light yellow clear liquid
Odor Odorless or characteristically mild
Nitrogen 7.8~8.6%
Specific Gravity( 25ºC) 1.14~1.17
pH 5.0~7.0
Total Solids 54~56%
As 0.001% max
Pb 0.004% max.

3. Packing
DMDM Hydantoin Standard packaging includes the following:
25kg net weight plastic pail
200kg net weight plastic drum
Other package sizes are available upon request.

4. Storage
DMDM Hydantoin Avoid freezing. Store at or near room temperature, out of direct sunlight. Keep containers tightly closed when not in use.
Storage at temperatures below 10°C for a long period of time, may cause formation of crystals, requires thawing and mixing prior to use, with no detrimental effect to product quality or efficacy.

5. Period of validity
24 months