DMDMH   INCI: DMDMH Hydantoin Chemical Name: 1,3-Bis(hydroxymethyl)-5,5-dimethyl-2,4-imidazolidinedione CAS Number: 6440-58-0 EINECS Number: 229-222-8 Molecular Formula: C7H12N2O4 Molecular Weight: 188.18 Structural Formula:   Specification: Appearance(25��) Colorless to light yellow clear liquid. Odor Odorless or characteristically mild. pH 5.0 – 7.0 Nitrogen, % 7.8 – 8.6 Total solids, % 54 – 56 Special gravity, (25��) 1.14 – 1.17 Dissociative formaldehyde, % 2.0 Max Total formaldehyde, % 17 - 18 As, % 0.001 Max Pb, % 0.004 Max Solubility Very soluble in water. Soluble in lower alcohols and glycols.   Application: The active ingredient of DMDMH, DMDM Hydantoin, is permitted for use in cosmetic and personal care products in the USA and the EU to a maximum concentration of 0.6%. DMDMH is compatible with essentially all cosmetic ingredients, such as surfactants, emulsifiers, proteins, aloe and amines. DMDMH is an excellent preservative for both leave-on and rinse-off products such as shampoos, creams, lotions, bubble baths, rinses, wipes and towelettes. It is easy to handle, very stable and cost-effective. The recommended use level is 0.1��0.6% by weight of product as supplied. DMDMH exhibits an excellent synergistic preservative effect in combination with Iodopropynyl Butylcarbamate (IPBC), Parabens and Isothiazolinones. It is stable over a wide range of pH and temperature conditions. It does not discolor product when combined with additives or by changes in pH. It can be added at a wide range of temperatures from ambient to elevated 80��.   Packing and Storage: Standard packaging includes the following: 1.0kg/bottle; 10bottles/box, 25kg net weight plastic pail, 220kg net weight plastic drum. Other package sizes are available upon request.   Avoid freezing. Store at or near room temperature, out of direct sunlight. Keep containers tightly closed when not in use. Storage at temperatures below 10oCfor 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.   Shelf life: 24 months.