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5,5-Dimethylhydantoin

Product Name
5,5-Dimethylhydantoin
CAS No.
77-71-4
Chemical Name
5,5-Dimethylhydantoin
Synonyms
DMH;5,5-Dimethylimidazolidine-2,4-dione;DIMETHYLHYDANTOIN;T10;dantoindmh;5,5-DIMETHYL-2,4-IMIDAZOLIDINEDIONE;ADPRC1;t10[qr];nsc8652;dmh[qr]
CBNumber
CB5277245
Molecular Formula
C5H8N2O2
Formula Weight
128.13
MOL File
77-71-4.mol
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5,5-Dimethylhydantoin Property

Melting point:
174-177 °C (lit.)
Boiling point:
237.54°C (rough estimate)
Density 
1.2864 (rough estimate)
refractive index 
1.4730 (estimate)
Flash point:
193°C
storage temp. 
Sealed in dry,Room Temperature
solubility 
H2O: 0.1 g/mL hot, clear
pka
pKa 8.1 (Uncertain)
form 
Crystalline Powder or Crystals
color 
White to off-white
Water Solubility 
soluble
BRN 
2827
LogP
-0.480
CAS DataBase Reference
77-71-4(CAS DataBase Reference)
NIST Chemistry Reference
2,4-Imidazolidinedione, 5,5-dimethyl-(77-71-4)
EPA Substance Registry System
5,5-Dimethylhydantoin (77-71-4)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25-36/37-26
WGK Germany 
2
RTECS 
MU0977000
TSCA 
Yes
HS Code 
29332100
Hazardous Substances Data
77-71-4(Hazardous Substances Data)
Toxicity
LD50 oral in rabbit: 12660mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H317May cause an allergic skin reaction

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
D161403
Product name
5,5-Dimethylhydantoin
Purity
97%
Packaging
100g
Price
$29.4
Updated
2025/07/31
Sigma-Aldrich
Product number
D161403
Product name
5,5-Dimethylhydantoin
Purity
97%
Packaging
1kg
Price
$91.5
Updated
2025/07/31
TCI Chemical
Product number
D0739
Product name
5,5-Dimethylhydantoin
Purity
>98.0%(T)
Packaging
25g
Price
$16
Updated
2025/07/31
TCI Chemical
Product number
D0739
Product name
5,5-Dimethylhydantoin
Purity
>98.0%(T)
Packaging
500g
Price
$47
Updated
2025/07/31
TRC
Product number
D473300
Product name
5,5-Dimethylhydantoin
Packaging
100g
Price
$135
Updated
2021/12/16
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5,5-Dimethylhydantoin Chemical Properties,Usage,Production

Chemical Properties

white to off-white crystals or crystalline powder

Uses

5,5-Dimethylhydantoin is part of a group of hydantoin compounds that are being evaluated for their anticonvulsant and central nervous system antitumour properties.

Definition

ChEBI: 5,5-Dimethylhydantoin is an imidazolidine-2,4-dione.

Purification Methods

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

5,5-Dimethylhydantoin Preparation Products And Raw materials

Raw materials

Acetone cyanohydrin Ammonium carbonate

Preparation Products

1,3-Dibromo-5,5-dimethylhydantoin
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5,5-Dimethylhydantoin Suppliers

Americas 1 Belgium 3 Canada 1 China 397 Czech Republic 1 Europe 5 Germany 13 India 26 Italy 1 Japan 7 Poland 1 Slovakia 1 South Korea 1 Switzerland 2 The Netherlands 1 Ukraine 1 United Kingdom 14 United States 40 Global 516
-Jilin Merlin Chemical Co., Ltd.
Tel
0432-63952539 13844213892
Email
13844213892@163.com
Country
China
ProdList
1
Advantage
58
Wuhan Huajiu Pharmaceutical Technology Co.,Ltd.
Tel
027-59225746 18062681621
Fax
027-59225746
Email
730880265@qq.com
Country
China
ProdList
4877
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42934
Advantage
64
XiaoGan ShenYuan ChemPharm co,ltd
Tel
15527768836
Email
1791901229@qq.com
Country
China
ProdList
6950
Advantage
52
Beijing Isomersyn Technology CO;LTD
Tel
010-82954736 13391601435
Email
sales@isomersyn.com
Country
China
ProdList
3295
Advantage
57
Beckmann-Kenko GmbH
Tel
+49 4241 9308 88
Fax
+49 4241 9308 89
Email
info@beckmann-kenko.com
Country
Germany
ProdList
478
Advantage
62
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View Lastest Price from 5,5-Dimethylhydantoin manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
5,5-Dimethylhydantoin 77-71-4
Price
US $0.00/KG
Min. Order
25KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-02-02
Hebei Chuanghai Biotechnology Co., Ltd
Product
5,5-Dimethylhydantoin 77-71-4
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 mt
Release date
2024-11-22
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
5,5-Dimethylhydantoin 77-71-4
Price
US $1000.00-700.00/ton
Min. Order
1ton
Purity
99%
Supply Ability
5000
Release date
2024-08-14

77-71-4, 5,5-DimethylhydantoinRelated Search:

Iprodione Dimethyl sulfoxide Dimethyl carbonate Dimethyl fumarate Dimethyl ether Dimethyl phthalate Dimethyl sebacate ETHANE N,N-Dimethylformamide Bromo-1-chloro-5,5-dimethylhydantoin, 3-: (Bromo-1-chloro-5.5-dimethyl-2,4-imidazokidinedione),3-BROMO-1-CHLORO-5,5-DIMETHYLHYDANTOIN (S)-MEPHENYTOIN 1,3-DIAZASPIRO[4.5]DECANE-2,4-DIONE 5-(4-METHYLPHENYL)-5-PHENYLHYDANTOIN 1-(HYDROXYMETHYL)-5,5-DIMETHYLHYDANTOIN,1-METHYLOL-5,5-DIMETHYLHYDANTOIN,1,1-METHYLOL-5,5-DIMETHYLHYDANTOIN 1-BROMO-3-CHLORO-5,5-DIMETHYLHYDANTOIN 96+%,1-Bromo-3-chloro-5,5-dimethylhydantoin 1,3-DICHLORO-5,5-DIMETHYLHYDANTOIN 5,5-Diphenylhydantoin 5-METHYL-5-PHENYLHYDANTOIN

  • dantoindmh
  • DM Hydantoin
  • dmh[qr]
  • dmhydantoin
  • Hydantoin, 5,5-dimethyl-
  • nsc8652
  • T10
  • t10[qr]
  • 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
  • 2,4-Imidazolidinedione,5,5-dimethyl-
  • 4-Imidazolidinedione,5,5-dimethyl-2
  • 5,5-dimethyl-4-imidazolidinedione
  • 5,5-dimethyl-hydantoi
  • 5,5-Dimethyl-imidazolidin-2,4-dion
  • 5,5-Dimethylimidazolidin-2,4-dione
  • 1-uriodo-2-propanone
  • 5,5-DIMETHYLHYDANTOIN (DMH)
  • 5,5-dimethylhydatoin
  • Acetonylurea
  • Dantoin DMH
  • CHLORETHERKETONE
  • 5,5-Dimethylhydantoin,97%
  • 5,5-DIMETHYL HYDANTOIN-AMINO ACID USAGE GRADE
  • 5,5-DIMETHYL HYDANTOIN-WATER TREATMENT GRADE
  • 2,4-Dioxo-5,5-dimethylimidazolidine
  • gamma-Dimethylhydantoin
  • 5,5-DiMethylhydantoin, 97% 1KG
  • 5,5-DiMethylhydantoin, 97% 250GR
  • 4,4-Dimethyl-2,5-dioxoimidazolidine
  • Fennosurf 300
  • 5,5-Dimethylhydantoin &gt
  • 5,5-Dimethylhydantoin USP/EP/BP
  • Hydantoin Impurity 13
  • Roxadustat Impurity 41
  • ADP-ribosyl cyclase 1
  • cyclic ADP-ribose hydrolase
  • 5,5-Dimethyl,1-nitro imidazolidine-2,4-dione
  • 5,5-Dimethylhydantoin,>98%
  • 5, 5-dimethylheine
  • PE/Elab Fluor? 594 Anti-Human CD38 Antibody[AT13/5
  • Elab Fluor? Red 780 Anti-Human CD38 Antibody[HIT2
  • 2'-phospho-ADP-ribosyl cyclase
  • 2'-phospho-cyclic-ADP-ribose transferase
  • ADPRC 1
  • ADPRC1
  • ADP-ribosyl
  • ADP-ribosyl cyclase 1 (ADPRC 1)
  • cyclase
  • cyclic ADP-ribose hydrolase 1
  • Cyclic ADP-ribose hydrolase 1 (cADPr hydrolase 1)