The IUPAC name of 5,5-Dimethylhydantoin is 5,5-dimethylimidazolidine-2,4-dione. With the CAS registry number 77-71-4, it is also named as 2,4-Imidazolidinedione, 5,5-dimethyl-; DM Hydantoin. The product's categories are miscellaneous natural products, water treatment chemicals, building blocks, heterocyclic building blocks and imidazolines / imidazolidines. It is white to off-white crystals or crystalline powder which is soluble in water, hexanol, ethyl acetate, dimethyl ether, slightly soluble in isopropylacetone, acetone, methyl ethyl ketone, and insoluble in aliphatic hydrocarbons, trichlorethylene.

The other characteristics of this product can be summarized as: (1)ACD/LogP: -0.66; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.66; (4)ACD/LogD (pH 7.4): -0.66; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 10.46; (8)ACD/KOC (pH 7.4): 10.4; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 0; (12)Index of Refraction: 1.449; (13)Molar Refractivity: 30.11 cm³; (14)Molar Volume: 112.1 cm³; (15)Polarizability: 11.93×10^-24 cm³; (16)Surface Tension: 30.5 dyne/cm; (17)Tautomer Count: 5; (18)Exact Mass: 128.058578; (19)MonoIsotopic Mass: 128.058578; (20)Topological Polar Surface Area: 58.2; (21)Heavy Atom Count: 9.

Uses of 5,5-Dimethylhydantoin: It is not only used in the amino acid synthesis, but also as a special epoxy resins, water-soluble resin, fungicides, preservatives, etc. Its derivatives such as 1,3-dichloro-5,5-dimethyl hydantoin can be used as chlorination agent and sanitizers, and 3-hydroxymethyl-5,5-dimethyl hydantoin can be used as formaldehyde-based agents and preservatives. In addition, it can be used in organic synthesis. For example: 1. It reacts with chloromethyl-benzene to get 3-benzyl-5,5-dimethyl-imidazolidine-2,4-dione. This reaction needs reagent NaH and solvent dimethylformamide at ambient temperature. The reaction time is 15 hours. The yield is 53%.



2. It also can react with morpholine and formaldehyde to obtain 5,5-dimethyl-3-morpholin-4-ylmethyl-imidazolidine-2,4-dione. This reaction needs reagent molecular sieves (4 Angstroem) and solvent dimethylformamide at ambient temperature. The reaction time is 15 hours. The yield is 100%.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. So people should not breathe dust and avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing and gloves. This product must be stored in a tightly closed container which placed in a cool, dry area.

People can use the following data to convert to the molecule structure.
1. SMILES: O=C1NC(=O)NC1(C)C;
2. InChI: InChI=1/C5H8N2O2/c1-5(2)3(8)6-4(9)7-5/h1-2H3,(H2,6,7,8,9).

The following are the toxicity data which has been tested.