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35620

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:
Molecular Weight:
210.45
Beilstein:
2364249
EC Number:
MDL number:
UNSPSC Code:
41116105
PubChem Substance ID:
NACRES:
NA.21

Quality Level

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

Signal Word

Danger

Hazard Statements

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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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)
2, 6-Dichloroquinone 4-chloroimide as a reagent for amines and aromatic hydrocarbons on thin-layer chromatograms.
Hansbro RJ
Analytical Chemistry, 40 (14), 2138-2143 (1968)
Occurrence and some properties of eledoisin in extracts of posterior salivary glands of Eledone.
Anastasi A and Erspamer V.
British Journal of Pharmacology and Chemotherapy, 19 (2), 326-336 (1962)
Colorimetric assay for methimazole in tablet formulations using the 2,6-dichloroquinone chloroimide reagent.
R Gatti et al.
Il Farmaco; edizione pratica, 40(3), 71-76 (1985-03-01)
P Orlewski et al.
Medycyna pracy, 33(4), 215-221 (1982-01-01)
So far there has not been any quick and simple method to estimate phenol exposure or phenol poisoning directly at the workstation. Our work was aiming at a modification of Lutogniewska's method of determining phenol in the saliva as an

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