Skip to Content
Merck
CN

35990

2,3-Dichloro-1,4-naphthoquinone

for spectrophotometric det. of hydrazides, ≥98.0%

Synonym(s):

Dichlon

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C10H4Cl2O2
CAS Number:
117-80-6
Molecular Weight:
227.04
UNSPSC Code:
41116105
NACRES:
NA.21
PubChem Substance ID:
329755243
EC Number:
204-210-5
Beilstein/REAXYS Number:
1073511
MDL number:
MFCD00001677

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI key

SVPKNMBRVBMTLB-UHFFFAOYSA-N

InChI

1S/C10H4Cl2O2/c11-7-8(12)10(14)6-4-2-1-3-5(6)9(7)13/h1-4H

SMILES string

ClC1=C(Cl)C(=O)c2ccccc2C1=O

description

algaecide

assay

≥98.0% (AT), ≥98.0%

form

powder

quality

for spectrophotometric det. of hydrazides

technique(s)

UV/Vis spectroscopy: suitable

mp

192-195 °C, 194-197 °C (lit.)

Quality Level

100

General description

2,3-Dichloro-1,4-naphthoquinone is a potent and safe fungicide, and finds application in both agriculture and textile industry. During seed treatment, it is used as a foliage spray and is also an excellent mildew-proofing agent. Furthermore it also resists weathering.

Application

2,3-Dichloro-1,4-naphthoquinone was used in its alkaline form in the colorimetric method, used for the spectrophotometric determination of hydrazides. It may also be used for the spectrophotometric analysis of isoniazid in the presence of its hydrazones.

pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Regulatory Information

新产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Spectrophotometric determination of hydrazides with 2, 3-dichloro-1, 4-napthoquinone.
Plaizier JA
Analytical Chemistry, 48 (11), 1536-1538 (1976)
2, 3-Dichloro-1, 4-naphthoquinone
Horst WP and Felix EL.
Ind. and Eng. Chem., 35 (12), 1255-1259 (1943)
Spectrophotometric determination of isoniazid in presence of its hydrazones.
Devani MB
Journal of Pharmaceutical Sciences, 67 (5), 661-663 (1978)
H J Kallmayer et al.
Die Pharmazie, 58(2), 104-107 (2003-03-19)
Isopropyl-alkylamines 2 react with 2,3-dichloro-1,4-naphthoquinone (1) to give red 2-chloro-3-isopropyl-alkylamino-1,4-naphthoquinones 3 and with 2,3-dichloro-1,4-naphthoquinone/acetaldehyde to give blue 2-chloro-3-isopropylalkylamino-vinyl-1,4-naphthoquinones 7. It is evident that the formation of 7 is preferred sterically to the formation of 3. The reaction between 2, 1
Angupillai Satheshkumar et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 98, 378-383 (2012-09-18)
Various spectroscopy techniques (UV-Vis, DRS, FT-IR, (1)H NMR, LC-MS) and theoretical computations have been employed to investigate the mechanism of the nucleophilic substitution reaction of 2,3-dichloronaphthoquinone (DCNQ) with para-substituted anilines in solid state under base- and solvent-free conditions against traditional
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service