CAS: 77-71-4
Molecular Formula: C5H8N2O2
Molecular Weight: 128.13
EINECS: 201-051-3
Synonyms: A-UREIDOISOBUTYRIC ACID LACTAM; DMH; DIMETHYLHYDANTOIN; 5,5-DIMETHYL-2,4-DIOXOTETRAHYDROIMIDAZOLE; 5,5-DIMETHYL-2,4-IMIDAZOLIDINEDIONE; 5,5′-DIMETHYLHYDANTOIN; 5,5-DIMETHYLHYDANTOIN; 5,5-Dimethylimidazolidine-2,4-dione; 5,5-Dimethylhydrantoin
5,5-Dimethylhydantoin is a white prismatic crystal or crystalline powder. Melting point 175 ℃. Soluble in water, hexanol, ethyl acetate, and dimethyl ether, slightly soluble in isopropanol, acetone, and methyl ethyl ketone, insoluble in fatty hydrocarbons and trichloroethylene. Odorless, capable of sublimation, and acidic.
| Item | Specification |
| Boiling point | 237.54°C (rough estimate) |
| Density | 1.2864 (rough estimate) |
| Melting point | 174-177 °C (lit.) |
| flash point | 193°C |
| resistivity | 1.4730 (estimate) |
| pKa | pKa 8.1 (Uncertain) |
5,5-Dimethylhydantoin is a widely used organic synthesis intermediate, which is a heterocyclic compound with certain rigidity. It can be used to prepare a series of valuable derivatives through substitution reactions, such as dibromohydantoin, dichlorohydantoin, and other fine chemicals widely used in the production fields of pharmaceuticals, pesticides, plastics, and cosmetics.
Usually packed in 25kg/drum,and also can be do customized package.
Q: What are the main uses of 5,5-dimethylhydantoin?
A: It is mainly used to synthesize halogenated hydantoin fungicides (DMDMH, BCDMH), and is also used to prepare hydantoin epoxy resins and hydantoin formaldehyde resins; it is also a pharmaceutical intermediate and raw material for amino acid synthesis; it is a raw material for water treatment and daily chemical preservatives.
Q: What are the common purity specifications?
A: The regular industrial grade is ≥99.0%; there is also a 98% grade; the moisture, ash content, and melting point range can be controlled according to customer requirements, and COA can be provided as a support.
Q: Storage conditions and shelf life?
A: It should be stored in a cool and dry warehouse, sealed and protected from moisture. This product absorbs moisture; avoid contact with strong acids and strong alkalis. The original packaging is sealed and has a shelf life of 24 months. Loosening and clumping do not indicate deterioration; after drying, it can be used normally.
Q: Recommended packaging method?
A: 25kg, inner lined with PE plastic bag, outer woven bag / cardboard barrel; also supports 50kg packaging, and custom small packaging can be provided. The key point of packaging is to ensure moisture-proof and sealing.
Q: Minimum order quantity, samples, and delivery time?
A: Samples can be provided; batch MOQ: 25kg; regular inventory delivery time is 3-7 days; large orders can be negotiated for production scheduling
