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77-71-4

  • Product Name:5,5-Dimethylhydantoin
  • Molecular Formula:C5H8N2O2
  • Molecular Weight:128.131
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Product Details

Detail

  • Cas No： 77-71-4
  • Molecular Formula： C5H8N2O2
  • Appearance： white to off-white crystals or crystalline powder
  • Purity： 99%
Product Name 5,5-Dimethylhydantoin
Alias 2,4-Imidazolidinedione,5,5-dimethyl-; 4-Imidazolidinedione,5,5-dimethyl-2
English
Molecular formula C5H8N2O2
Molecular weight 128.13
CAS No 77-71-4
EINECS 201-051-3
Specification

Assay ≥99%

Melting point: 174~178°C

Moisture ≤0.5%

PH 4.5-6.0

Ash ≤0.1%
Appearance traits White crystal
Use Used for amino acid synthesis, it can also be used as special epoxy resin and water soluble resin, fungicide, antiseptic and so on.
Package 25KG/fiber drum
Other product information

Hazard: None

Molecular Structure:

Factory supply 5,5-Dimethylhydantoin 77-71-4 (DMH)  with low price

  • Molecular Formula:C5H8N2O2
  • Molecular Weight:128.131
  • Appearance/Colour:white to off-white crystals or crystalline powder 
  • Melting Point:174-177 °C(lit.) 
  • Refractive Index:1.449 
  • Boiling Point:237.54°C (rough estimate) 
  • PKA:pKa 8.1 (Uncertain) 
  • Flash Point:193oC 
  • PSA：58.20000 
  • Density:1.142 g/cm3 
  • LogP:0.26200 

5,5-Dimethylhydantoin(Cas 77-71-4) Usage

Purification Methods

Crystallise the hydantoin from EtOH and sublime it in vacuo. [Beilstein 24 III/IV 1097.]

Uses and Mechanism of Action

5,5-Dimethylhydantoin(DMH) is utilized in various fields, including antimicrobial finishing of textiles, polymer chemistry, and electrochemistry. It is synthesized for specific applications, such as in textile finishing and polymer functionalization.

Antimicrobial Properties:
DMH can be utilized for antimicrobial finishing of textiles. Coating cotton fabrics with DMH followed by chlorination imparts antimicrobial properties, making them effective against bacteria such as Staphylococcus aureus.

Polyurethane Modification:
DMH is employed in the modification of polyurethanes to create surfaces with contraphilic wetting properties. These surfaces exhibit hydrophilicity when dry and hydrophobicity when wetted.

Electrochemistry:
DMH is used in cyanide-free silver electrodeposition baths as a complexing agent, along with polyethyleneimine (PEI), to facilitate silver electrodeposition without cyanide.

InChI:InChI=1/C5H8N2O2/c1-5(2)3(8)6-4(9)7-5/h1-2H3,(H2,6,7,8,9)

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77-71-4 Relevant articles

-

Bucherer,Brandt

, p. 145 ()

-

Continuous Synthesis of Hydantoins: Intensifying the Bucherer-Bergs Reaction

Monteiro, Julia L.,Pieber, Bartholom?us,Corrêa, Arlene G.,Kappe, C. Oliver

supporting information, p. 83 - 87 (2015/12/26)

A continuous Bucherer-Bergs hydantoin sy...

Synthesis and in vivo hypoglycemic activity of new imidazolidine-2,4-dione derivatives

Hussain, Abid,Kashif, Muhammad Kalim,Naseer, Muhammad Moazzam,Rana, Usman A.,Hameed, Shahid

, p. 7313 - 7326 (2015/09/29)

A series of new 3-arylsulfonylimidazolid...

Mechanochemical preparation of hydantoins from amino esters: Application to the synthesis of the antiepileptic drug phenytoin

Konnert, Laure,Reneaud, Benjamin,De Figueiredo, Renata Marcia,Campagne, Jean-Marc,Lamaty, Frdric,Martinez, Jean,Colacino, Evelina

, p. 10132 - 10142 (2015/02/19)

The eco-friendly preparation of 5- and 5...

AMIDOALKYLPIPERAZINYL DERIVATIVES FOR THE TREATMENT OF CENTRAL NERVOUS SYSTEM DISEASES

-

Page/Page column 29; 30, (2013/03/26)

The invention relates to novel amidoalky...

77-71-4 Process route

potassium cyanide

potassium cyanide

ammonium carbonate
506-87-6,6721-33-1,10361-29-2

ammonium carbonate

acetone
67-64-1

acetone

5,5-dimethyl-imidazolidine-2,4-dione
77-71-4

5,5-dimethyl-imidazolidine-2,4-dione

Conditions
Conditions Yield
In water; at 120 ℃; for 0.533333h; under 15001.5 Torr; Flow reactor;
82%
potassium cyanide; ammonium carbonate; acetone; In ethanol; water; at 55 - 60 ℃;
With hydrogenchloride; In ethanol; water;
65%
acetone; With sodium metabisulfite;
potassium cyanide;
ammonium carbonate;
 
In ethanol; water; at 50 - 80 ℃; Reflux;
 
2,3:4,5-di-O-isopropylidene-D-xylose
3673-15-2,13039-93-5,13039-94-6,23568-31-2,50866-82-5,81801-10-7,120522-08-9,120522-09-0,120522-10-3

2,3:4,5-di-O-isopropylidene-D-xylose

5,5-dimethyl-imidazolidine-2,4-dione
77-71-4

5,5-dimethyl-imidazolidine-2,4-dione

5-[(R)-2-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2-hydroxy-eth-(Z)-ylidene]-imidazolidine-2,4-dione
116730-53-1

5-[(R)-2-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2-hydroxy-eth-(Z)-ylidene]-imidazolidine-2,4-dione

Conditions
Conditions Yield
With potassium cyanide; In ethanol; water; at 50 ℃; for 24h;
62.5%

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