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Hydrazinecarboxylic acid, [[2-[(1,1-dimethylethoxy)carbonyl]hydrazino](4-methylphenyl)methylene]- , 1,1-dimethylethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137256-72-5

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137256-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137256-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,5 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137256-72:
(8*1)+(7*3)+(6*7)+(5*2)+(4*5)+(3*6)+(2*7)+(1*2)=135
135 % 10 = 5
So 137256-72-5 is a valid CAS Registry Number.

137256-72-5Relevant academic research and scientific papers

Hydrazidines, V. - Synthesis and Reactions of Aromatic and Aliphatic Hydrazidines and Their N1-Substituted Derivatives

Neunhoeffer, Hans,Karafiat, Ute,Koehler, Gernot,Sowa, Birgit

, p. 115 - 126 (2007/10/02)

Aromatic hydrazidines 3 have been synthetized by reaction of aromatic orthocarboxylates 4 with tert-butyl carbazate (5) and reaction of the protected hydrazidines 7 with HCl/methanol or HBr/acetic acid.Aliphatic N1-methylhydrazidines 8 have been prepared by methylation of bis (tert-butoxycarbonyl)-hydrazidines 7 and deprotection with HBr/acetic acid.Aromatic N1-methylhydrazidines 8 have been obtained by methylation of N1-methyl(thiohydrazides) 11, reaction of 12 with tert-butyl carbazate (5) and deprotection of 13 with HCl/methanol. -- Attempts to remove both protecting groups in N1-alkyl-N2,N4-bis(benzylidene)hydrazidines 16 failed. -- Some reactions of 3 and 8 are described.Key Words: Hydrazidines / 1,2,4-Triazines / 1,2,4,5-Tetrazines / 1,2,4,5-Tetrazinoisoindoles / Pyrrolo1,2,4,5-tetrazines

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