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1,3-Dibromo-5,5-dimethylhydantoin

CAS:
77-48-5
MF:
C5H6Br2N2O2
MW:
285.92

Properties

Melting point:
197-199 °C (dec.)(lit.)
Boiling point:
250.2±23.0 °C(Predicted)
Density 
1.00 g/cm3 (25℃)
refractive index 
1.6220 (estimate)
Flash point:
155 °C
storage temp. 
0-6°C
solubility 
1g/l
pka
-3.44±0.40(Predicted)
form 
Powder
color 
Cream or light yellow
Water Solubility 
Soluble in Alcohol, Ether, Benzene. Insoluble in Water.
Sensitive 
Moisture Sensitive
Decomposition 
197-199 ºC
Merck 
14,3017
BRN 
146024

Safety Information

Symbol(GHS) 

GHS03,GHS05,GHS06,GHS09
Signal word 
Danger
Hazard statements 
H272-H301-H314-H317-H410-H318-H400
Precautionary statements 
P301+P310a-P303+P361+P353-P501a-P221-P260-P264-P270-P273-P301+P330+P331+P310-P303+P361+P353+P310+P363-P304+P340+P310-P305+P351+P338+P310-P391-P405-P501-P210-P220-P280-P305+P351+P338-P370+P378
Hazard Codes 
O,C,N,Xi
Risk Statements 
8-22-35-50/53-50-34
Safety Statements 
17-26-36/37/39-45-60-61
RIDADR 
UN 3087 5.1/PG 2
WGK Germany 
3
RTECS 
MU0686000
Hazard Note 
Harmful/Irritant
TSCA 
Yes
HazardClass 
5.1
PackingGroup 
II
HS Code 
29332100

Use

Adding an appropriate amount of water to dimethyl hydantoin, control the temperature at about 30 ℃ for stirring of 30min until all the dimethyl hydantoin is dissolved. Add drop wise of appropriate amount of bromine within a certain period of time and then have reaction for several hours. After the completion of the reaction, cool the solution, crystallize using ethanol, filter, and dry with the light-yellow solid being finished product of DBDMH. The optimal condition for experimentally determination and synthesis of DBDMH is: the optimum molar ratio of DMH to bromine is 1: 2.0; the solvent amount is 80 mL (water) /0.1mol (Hein); the reaction temperature should be about 30 ℃; Reaction time is around 5min with the yield of 1,3-dibromo-5,5-dimethylhydantoin being up to 80%.

237 supplier list of "1,3-Dibromo-5,5-dimethylhydantoin"

  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin
  • Products Intro:Purity: 98%(Min,HPLC) | Package: 100g;1kg;5kg,10kg,25kg,50kg
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: +86-571-85586718
  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin
  • Products Intro:Purity: 99% | Package: 100g,500g,1kg,5kg,10kg
  • Type of Enterprise: Reagent
  • Country/Region: CHINA
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  • Main Products: Speciality Chemicals
  • Product Name:1,3-Dibromo-5,5-dimethyl-2,4-imidazolidinedione
  • Products Intro:Purity: 98%99% | Package: 100G;1KG;5KG;10KG;25KG;50KG;100KG
  • Type of Enterprise: Trader
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  • Product Name:Dibrom-dimethylhydantoin
  • Products Intro:Purity: 99% | Package: 500G;1KG;5KG;25KG
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: 0371-55170693
  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: +86-021-57951555
  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin
  • Products Intro:Purity: 98% HPLC | Package: 5G;10G;25G;50G;100G;250G;1KG
  • Type of Enterprise: Reagent
  • Country/Region: CHINA
  • TEL: +86 21 5161 9050/ 5187 7795

    US $7.00/ 1kg

  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin
  • Products Intro:Purity: 99% | Package: 1kg;7USD
  • Type of Enterprise: Reagent
  • Country/Region: CHINA
  • TEL: +86-371-86658258
  • Main Products: Nicotinamide riboside chloride,Curcumin,L(+)-Ascorbic acid,L-Glutamine,Stevioside Basic information
  • Product Name:Dibrom-dimethylhydantoin
  • Products Intro:Purity: 99% | Package: 5KG;1KG;25KG
  • Type of Enterprise: Reagent
  • Country/Region: CHINA
  • TEL: 86-21-51086038
  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin
  • Products Intro:Purity: 99% | Package: 5KG;1KG | CustNote: C5H6Br2N2O2
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: 86-18871470254
  • Main Products: Apis
  • Product Name:1,3-Dibromo-5,5-dimethylhydantoin (DBDMH)
  • Products Intro:Package: 5KG;1KG
  • Type of Enterprise: Contractor
  • Country/Region: CHINA
  • TEL: 86-531-88032799
  • Main Products: Pharmaceutical Intermediates; Photoinitiator series

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