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4-nitrobenzyl 5-butyl-1-octyl-3-m-tolyl-1H-pyrazole-4-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1616888-90-4

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1616888-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1616888-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,8,8 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1616888-90:
(9*1)+(8*6)+(7*1)+(6*6)+(5*8)+(4*8)+(3*8)+(2*9)+(1*0)=214
214 % 10 = 4
So 1616888-90-4 is a valid CAS Registry Number.

1616888-90-4Downstream Products

1616888-90-4Relevant academic research and scientific papers

Copper-mediated pyrazole synthesis from 2,3-allenoates or 2-alkynoates, amines and nitriles

Chen, Bo,Zhu, Can,Tang, Yang,Ma, Shengming

, p. 7677 - 7679 (2014)

An efficient copper-mediated three-component reaction of 2,3-allenoates or 2-alkynoates, amines, and nitriles affording fully substituted pyrazoles with a very nice diversity has been developed. A tandem conjugate addition, 1,2-addition, and N-N bond formation mechanism has been proposed for this diverse synthesis of pyrazoles based on mechanistic studies.

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