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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
STBK7183
STBL1753
STBL3033
STBL0579
STBK3022

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Hydrogen peroxide solution contains inhibitor, 30 wt. % in H2O, ACS reagent

Sigma-Aldrich

216763

Hydrogen peroxide solution

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)
Use of 2,6-dichloroquinone chlorimide for the spectrophotometric determination of halogenated derivatives of 8-hydroxyquinoline.
F Belal
The Analyst, 109(5), 615-618 (1984-05-01)
A G Kobylianskiĭ et al.
Voprosy meditsinskoi khimii, 40(4), 40-46 (1994-07-01)
Quantitative estimation of phenol content in human urine involving Gibbs reagent was described in detail; the procedure was applied for screening test of people. The Gibbs reagent was synthesized from commonly available substances 2,6-dibromine-4-aminophenol and 4-nitrophenol. Estimation of total and
G Sgaragli et al.
Biochemical pharmacology, 29(5), 763-769 (1980-03-01)
Di-BHA, 2,2'-dihydroxy-3,3'-di-t-butyl-5,5'-dimethoxy-diphenyl, was isolated as the product of the reaction of either commercial horseradish peroxidase or partially purified rat intestine peroxidase (Donor-H(2)O(2) oxidoreductase, EC 1.11.1.7.) and hydrogen peroxide with 2-t-butyl-4-methoxyphenol (BHA). BHA, Di-BHA and other cyclic compounds possessing a hydroxyl
[A colorimetric method using 2,6-dichloroquinonechloroimide as color reagent for the determination of alkaline phosphatase in serum (author's transl)].
A Shimasue et al.
Rinsho byori. The Japanese journal of clinical pathology, 28(8), 817-820 (1980-08-01)
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