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2,2',4,4'-Tetranitroazobenzene, also known as TNAB, is a chemical compound with the molecular formula C12H8N8O8. It is an orange-red crystalline solid that is highly sensitive to shock and friction, making it a potential explosive material. TNAB is synthesized by nitrating azobenzene, a compound formed by the coupling of two nitrobenzene molecules. Due to its high sensitivity, TNAB is not used in practical applications and is mainly of interest for research purposes. It is important to handle 2,2',4,4'-tetranitroazobenzene with extreme caution due to its potential explosive nature and the risk of detonation under certain conditions.

5267-25-4

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5267-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5267-25-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,6 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5267-25:
(6*5)+(5*2)+(4*6)+(3*7)+(2*2)+(1*5)=94
94 % 10 = 4
So 5267-25-4 is a valid CAS Registry Number.

5267-25-4SDS

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 hex-5-en-1-ylmagnesium chloride

1.2 Other means of identification

Product number -
Other names -

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

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

More Details:5267-25-4 SDS

5267-25-4Relevant academic research and scientific papers

Kinetics and Mechanism of Oxidation of 2,4-Dinitrophenylhydrazine, p-Nitrophenylhydrazine, and p-Tolylhydrazine with Potassium Hexacyanoferrate(III) in Acidic Perchlorate Media

Gupta, Ashok K.,Gupta, Bharati,Gupta, Abhay K.,Gupta, Yugul K.

, p. 2599 - 2604 (2007/10/02)

The kinetics of oxidation of 2,4-dinitrophenylhydrazine (dnph), p-nitrophenylhydrazine (pnph), and p-tolylhydrazine (pth) with hexacyanoferrate(III) have been studied in acidic perchlorate solutions.The oxidation of pnph has no dependence on +> in the range 0.15-2.0 mol dm-3.In the oxidation of dnph complex formation with 3- occurs, and the reaction is independent of +> in the range 0.025-2.5 mol dm-3.The oxidation of pth in the range 0.01-1.6 mol dm-3 has been found to obey the rate low -d3->/dt = 33->1''/K1''+>) + k2'' + k3''K2''+>>, where K1'' and K2'' are the first and second protonation constants of pth, and k1'', k2'', and k3'' are the second-order rate constants for the unprotonated, monoprotonated, and diprotonated species respectively.The oxidations occur via aryldiazene and diazonium ion intermediates, to produce substituted azobenzenes and anilines as final products.In the oxidations 2-3 mol of 3- are consumed by each mol of arylhydrazine, depending on the conditions; under specific conditions, the stoicheiometry is exact.

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