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2-[p-[(2,6-dichloro-4-nitrophenyl)azo]-N-ethylanilino]ethanol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

6657-40-5

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6657-40-5 Usage

Type

Chemical compound

Function

pH indicator in laboratory tests

Appearance

Red dye

Transition range

4.8 to 6.7

Uses

Biochemical and clinical assays, textile industry for dyeing and printing

Precautions

Handle with caution due to potential toxicity; follow strict safety protocols

Check Digit Verification of cas no

The CAS Registry Mumber 6657-40-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,5 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6657-40:
(6*6)+(5*6)+(4*5)+(3*7)+(2*4)+(1*0)=115
115 % 10 = 5
So 6657-40-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H16Cl2N4O3/c1-2-21(7-8-23)12-5-3-11(4-6-12)19-20-16-14(17)9-13(22(24)25)10-15(16)18/h3-6,9-10,23H,2,7-8H2,1H3/b20-19+

6657-40-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-[N-ethyl-4-(2,6-dichloro-4-nitro-phenylazo)-anilino]-ethanol

1.2 Other means of identification

Product number -
Other names 2-[{4-[(2,6-DICHLORO-4-NITROPHENYL)DIAZENYL]PHENYL}(ETHYL)AMINO]ETHANOL

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:6657-40-5 SDS

6657-40-5Upstream product

6657-40-5Downstream Products

6657-40-5Relevant academic research and scientific papers

Clean preparation method for weakly alkaline arylamine azo disperse dye

-

Paragraph 0047; 0048; 0049; 0050; 0051; 0057; 0058, (2017/01/02)

The present invention provides a clean preparation method for weakly alkaline arylamine azo disperse dye. The method is characterized in that when a weakly alkaline arylamine diazonium double salt solid is coupled with a coupling component, the coupling component is pretreated to obtain a fine particle dispersion to be coupled with the weakly alkaline arylamine diazonium double salt; and the generated disperse dye is precipitated from the coupling system and is filtered and dried, thereby obtaining the weakly alkaline arylamine azo disperse dye. According to the preparation method provided by the present invention, by using a stable double salt structure of a diazonium salt, during the coupling, the process of adding acid for dissolution can be omitted; the coupling is performed at the normal temperature, and extra cooling is not required; and the method has a broad application prospect.

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