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Merck
CN

157902

1,3-Dibromo-5,5-dimethylhydantoin

98%

Synonym(s):

Dibromantin

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About This Item

Empirical Formula (Hill Notation):
C5H6Br2N2O2
CAS Number:
Molecular Weight:
285.92
UNSPSC Code:
12352101
NACRES:
NA.22
PubChem Substance ID:
EC Number:
201-030-9
Beilstein/REAXYS Number:
146024
MDL number:
Assay:
98%
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Quality Level

assay

98%

mp

197-199 °C (dec.) (lit.)

SMILES string

CC1(C)N(Br)C(=O)N(Br)C1=O

InChI

1S/C5H6Br2N2O2/c1-5(2)3(10)8(6)4(11)9(5)7/h1-2H3

InChI key

VRLDVERQJMEPIF-UHFFFAOYSA-N

Application

Useful in aromatic bromination of alkoxybenzoic acids and in bromofluorination of alkenes.


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Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 3 - Skin Corr. 1B - Skin Sens. 1

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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M Hilp
Die Pharmazie, 57(1), 45-48 (2002-02-12)
PH. EUR. 2002 uses elemental bromine performing iron limit tests for maleic acid (iron 5 ppm) and titanium dioxide (iron 200 ppm). 1,3-Dibromo-5,5-dimethylhydantoin (DBH) can replace bromine water. For the iron limit test of maleic acid bivalent iron is oxidized
M Hilp
Die Pharmazie, 56(7), 548-551 (2001-08-08)
The identification of lactate according to Ph. Eur. 1997 and DAB 2000 uses the oxidation of lactic acid to pyruvic acid by boiling with bromine water in sulphuric acid. Acetaldehyde arising by decarboxylation is detected according to Legal applying a
M Hilp
Die Pharmazie, 57(4), 250-251 (2002-05-10)
PH. EUR. 2002 identifies nicotinamid, nicotinic acid, and nikethamide according the reaction of König using cyanogen bromide solution prepared with bromine water and ammonium thiocyanate immediately before use. This colour reaction can be better performed with 1,3-dibromo-5,5-dimethylhydantoin (DBH) and sulphanilic



Global Trade Item Number

SKUGTIN
157902-25G04061838743695
157902-1KG04061841724247
157902-500G04061838743701