
5,5-Dimethylhydantoin CAS No.77-71-4
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Category:Pharmaceutical Materials MOQ:100KG Shipped directly from China
Introduction
CAS No.77-71-4
Name:
5.5-Dimethylhydantoin
Synonyms:
T10
DMH
t10[qr]
dmh[qr]
nsc8652
dantoindmh
dmhydantoin
DM Hydantoin
Dimethylhydantoin
5.5-Dimethylhydantoin
5.5-Dimethylhydrantoin
5.5-Dimethyl hydantoin
Hydantoin, 5.5-dimethyl-
5.5-Dimethyl-2.4-imidazolidinedione
5.5-dimethylimidazolidine-2.4-dione
Reference Information:
Introduction:
5. 5-dimethylhydantoin is an important organic synthesis intermediate with a wide range of uses, it is a heterocyclic compound with a certain rigid skeleton. A range of valuable derivatives can be prepared by substitution reactions. Such as: dibromohydantoin, dichlorohydantoin and other widely used in organic synthesis, medicine, plastics, food, cosmetics, pesticides and other production areas.
Application:
5. 5-dimethylhydantoin, also known as 5. 5-dimethylhydantoin, DMH, is a wide range of uses of organic synthesis intermediates, is a rigid heterocyclic compounds, can be prepared by substitution reaction of a series of valuable derivatives, such as: dibromohydantoin, dichlorohydantoin and other widely used in medicine, fine Chemicals in the production of pesticides, plastics and cosmetics.
preparation a. Add 600-800 parts of ammonium bicarbonate and 500-700 parts of acetone cyanohydrin to water and stir to fully dissolve, sealed when heated to 10 ℃; B. 30-50 parts of ammonia gas is introduced into the material prepared by Step a, and heated slowly to 50-65 ℃ for 1-2 hours, and stirring; c, the material prepared by Step B is heated to 75~85 ℃, the air is drawn for 30~50 minutes, and then cooled to room temperature and filtered to obtain crude dimethyl hydantoin and mother liquor; d. 950~1150 parts of crude dimethyl hydantoin prepared by Step c is put into a mixture of 150~300 parts of water and 700~900 parts of mother liquor, after heating to 80~98 ° C., 3~8 parts of activated carbon is added, decolorization is carried out for 20~40 minutes, the activated carbon is removed by filtration, and then crystallization is cooled, centrifugal filtration and drying are carried out to obtain a dimethyl hydantoin finished product.
uses :
for amino acid synthesis, but also as a special epoxy resin and water-soluble resin, fungicides, preservatives, etc. Its derivatives such as 1. 3-dichloro-5. 5-dimethylhydantoin can be used as chlorinating agent, Disinfection bactericide, 3-hydroxymethyl-5. 5-dimethylhydantoin is useful as a formaldehyde agent, a preservative, and the like.
mainly used as disinfectant, epoxy resin and amino acid raw materials
production method:
is obtained by reacting acetone cyanohydrin ([75-86-5]) with an aqueous ammonium carbonate solution at 50-80 °c.
Attribute | Details |
---|---|
Chemical Name | 5.5-Dimethylhydantoin |
Other Names | 5.5-Dimethyl-2.4-imidazolidinedione; 5.5-Dimethylimidazolidine-2.4-dione; Dimethylhydantoin; etc. |
CAS Number | 77-71-4 |
Molecular Formula | C5H8N2O2 |
Molecular Weight | 128.13 g/mol |
Appearance | White to grayish white crystals or crystalline powder |
Melting Point | 175°C (literature value may vary slightly) |
Density | 1.142 g/cm³ |
Flash Point | 193°C |
Solubility | Soluble in water, ethanol, ethyl acetate, and dimethyl ether; slightly soluble in isopropanol, acetone, and methyl ethyl ketone; insoluble in aliphatic hydrocarbons and trichloroethylene |
Production Method | Obtained by reacting acetone cyanohydrin with ammonium carbonate aqueous solution at 50-80°C |
Applications | Used in amino acid synthesis; as a specialty epoxy resin and water-soluble resin; as a fungicide and preservative; derivatives such as 1.3-dichloro-5.5-dimethylhydantoin are used as chlorinating agents and disinfectants, while 3-hydroxymethyl-5.5-dimethylhydantoin is used as a formaldehyde agent and preservative |
Storage Conditions | Store in a cool, dry place, away from direct sunlight and heat, and keep away from incompatible materials |
Safety Information | Handle with caution, avoiding contact with skin and eyes; follow standard chemical safety procedures and wear appropriate protective clothing and eye/face protection |
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