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Supelco

2,6-Dichloroquinone-4-chloroimide

for spectrophotometric det. of vitamin B6, ≥99.0%

Synonym(s):

N,2,6-Trichloro-p-benzoquinoneimide, Gibb’s reagent

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About This Item

Empirical Formula (Hill Notation):
C6H2Cl3NO
CAS Number:
101-38-2
Molecular Weight:
210.45
Beilstein:
2364249
EC Number:
202-937-2
MDL number:
MFCD00001611
UNSPSC Code:
41116105
PubChem Substance ID:
329755199
NACRES:
NA.21

Quality Level

100

Assay

≥99.0% (AT)
≥99.0%

quality

for spectrophotometric det. of vitamin B6

technique(s)

UV/Vis spectroscopy: suitable

mp

65-67 °C (lit.)
65-68 °C

application(s)

food and beverages
vitamins, nutraceuticals, and natural products

storage temp.

2-8°C

SMILES string

Cl\N=C1\C=C(Cl)C(=O)C(Cl)=C1

InChI

1S/C6H2Cl3NO/c7-4-1-3(10-9)2-5(8)6(4)11/h1-2H

InChI key

YHUMTHWQGWPJOQ-UHFFFAOYSA-N

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General description

2,6-Dichloroquinone-4-chloroimide generally find application in being used as spot test and chromatographic spray reagents, mainly for phenols, though it can be used in detection of other types of compounds such as antioxidants, few primary and secondary amines, on silica gel chromatographic plates. Its decomposition rate is directly proportional to pressure.

Application

Gibb′s reagent was used in paper chromatography, in an experiment conducted to semi-quantitatively estimate tyramine and octopamine.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H242,H315,H319

Hazard Classifications

Eye Irrit. 2 - Self-react. C - Skin Irrit. 2

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBK3022
STBK0031
STBJ3574
STBJ0745
STBH8380

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Colour reaction of phenols with the gibbs reagent. The reaction mechanism and decomposition and stabilisation of the reagent.
Svobodova D
Microchimica Acta, 67 (3-4), 251-264 (1977)
P Miller et al.
Clinical chemistry, 36(4), 668-669 (1990-04-01)
In this nonenzymatic colorimetric method, dichlorobenzoquinone chloroimine is used as a color reagent to measure uric acid in urine. This method is less subject to the interferences that make enzymatic methods unreliable and is inexpensive, simple, and fast.
Colorimetric determination of prenalterol hydrochloride in dosage forms.
F A Aly et al.
Journal of pharmaceutical and biomedical analysis, 12(7), 955-958 (1994-07-01)
G G Mohamed et al.
Journal of pharmaceutical and biomedical analysis, 28(6), 1127-1133 (2002-06-07)
A simple, rapid and sensitive spectrophotometric method for the determination of sulbutamol in pure form and in different pharmaceutical preparations has been developed. The charge transfer (CT) reaction between salbutamol as electron donor and 2,6-dichloroquinone chlorimide (DCQ) and 7,7,8,8-tetracyanoquinodimethane (TCNQ)
Mohammad-Wadud Bhuiya et al.
Analytical biochemistry, 384(1), 151-158 (2008-10-18)
S-adenosyl-L-methionine (AdoMet)-dependent O-methyltransferases (OMTs) catalyze the transmethylation of a variety of phenolics in bacteria, plants, and humans. To rapidly characterize phenolic OMT activities, we adapted Gibbs' reagent, the dye originally used for detecting phenols, to develop a convenient assay method
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