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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:
77-48-5
Molecular Weight:
285.92
UNSPSC Code:
12352101
NACRES:
NA.22
PubChem Substance ID:
24849707
EC Number:
201-030-9
Beilstein/REAXYS Number:
146024
MDL number:
MFCD00003189
Assay:
98%

Key Documents

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InChI key

VRLDVERQJMEPIF-UHFFFAOYSA-N

InChI

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

SMILES string

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

assay

98%

mp

197-199 °C (dec.) (lit.)

Quality Level

200

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Related Categories

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCX7854
MKCX5981
MKCX1711
MKCW0207
MKCQ7370

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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
J Kasai et al.
Rinsho byori. The Japanese journal of clinical pathology, 37(8), 918-922 (1989-08-01)
Legionella spp., the causative organism of legionnaires' disease, were isolated from more than 80% of water samples in cooling towers before washing. Therefore, we evaluated the effect of microbicide treatment of cooling tower water on Legionella spp., other bacteria and
Tetrahedron Letters, 34, 931-931 (1993)
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(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
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