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157902

1,3-Dibromo-5,5-dimethylhydantoin

Name: 1,3-Dibromo-5,5-dimethylhydantoin
Brand: ALDRICH

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%

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Properties

Quality Level

200

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

Description

Application

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

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pictograms

GHS03,GHS06,GHS05,GHS09

signalword

Danger

hcodes

H272,H301,H314,H317,H410

pcodes

P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

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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Determination of iodine values using 1,3-dibromo-5,5-dimethylhydantoin (DBH) and ethyl acetate as solvent. Analytical methods with DBH in respect to environmental and economical concern, part 18.

M Hilp

Die Pharmazie, 59(8), 612-614 (2004-09-24)

Iodine values (iodine numbers) of several fixed oils and lard can be determined in ethyl acetate, an easily biodegredable solvent, instead of chloroform according to PH. EUR. 2002. Iodine monobromide has been replaced by 1,3-dibromo-5,5-dimethylhydantoin (DBH) and potassium iodide (KI)

1,3-Dibromo-5,5-dimethylhydantoin (DBH) as oxidant and precipitant for drug identification according to PH. EUR Analytical methods of pharmacopoeias with DBH in respect of environmental and economical concern, Part 15(1).

M Hilp

Die Pharmazie, 57(6), 393-395 (2002-07-16)

Elemental bromine serves as oxidant for the identification of propylthiouracil, 2-thiouracil and sulphur according to PH. EUR. 2002. Phenol is identified according to PH. EUR. 2002 with bromine water as the sparingly water-soluble 2,4,4,6-tetrabromo-2,5-cyclohexadiene-1-one. These tests can be performed better

Facile exchange of glycosyl S,S-acetals to their O,O-acetals and preparation of glycofuranosides from acyclic glycosyl S,S-acetals under metal-free reaction conditions in the presence of 1,3-dibromo-5,5-dimethylhydantoin.

Soni Kamlesh Madhusudan et al.

Carbohydrate research, 340(3), 497-502 (2005-02-01)

Exchange of acyclic glycosyl dithioacetals to their O,O-acetals has been achieved by a generalized reaction protocol mediated by 1,3-dibromo-5,5-dimethylhydantoin under mild, metal-free and neutral conditions. This methodology has been extended to the synthesis of alkyl glycofuranosides.

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Global Trade Item Number

SKU	GTIN
157902-25G	04061838743695
157902-1KG	04061841724247
157902-500G	04061838743701