English name Dimethyloldimethyl hydantoin
CAS6440-58-0
EINECS number 229-222-8
Molecular formula C7H12N2O4
MDL number MFCD00467199
Molecular weight 188.18
Melting point 1.00-2.5 �°C
Boiling point 303.7�±52.0 �°C(Predicted)
Density 1.349�± 0.06g /cm3(Predicted)
Vapor pressure 0Pa at 25
Storage conditions Sealed in dry,Room Temperature
Solubility DMSO (small amount), methanol (small amount)
Acidity coefficient (pKa)13.41�±0.10(Predicted)
Morphological solid
Color White to off-white
Water solubility 140g/L at 20
Stability is unstable in DMSO solution
Dimethyloldimethyl hydantoin is a popular preservative with moderate sensitizing potential, it is used to control against mold, mildew, and bacterial spoilage. This preservative is similar to imidazolidinyl urea, as both act by releasing formaldehyde into the formulation. Cosmetic expert panels have determined that Dimethyloldimethyl hydantoin has an excellent safety record for use in both leave-on and washoff cosmetic preparations. Maximum-use concentrations are set at 0.2 percent in the u.S. and 0.6 percent in the european union. Dimethyloldimethyl hydantoin stands for dimethylimidazolidine, though in a listing the acronym is rarely spelled out.
Density 1.4 ± 0.1g /cm3 Boiling point 303.7 ±52.0 °C at 760 mmHg Melting point 797 °C(lit.) Molecular formula C7H12N2O4 Molecular weight 188.181 Flash point 137.5 ±30.7 °C Accurate mass 188.079712 PSA 81.08000 LogP-1.95 Appearance liquid Vapor pressure 0.0 ±1.4 mmHg at 25 °C Refractive index 1.529 Storage condition This product is packed in plastic bottle and external carton, each bottle is 10kg, each box is 10 bottles. Plastic drum packing, 25kg per barrel. Store in a cool, dry place away from light, and keep closed at room temperature. Avoid freezing. The shelf life is 24 months.
