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640296-86-2

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640296-86-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 640296-86-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,0,2,9 and 6 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 640296-86:
(8*6)+(7*4)+(6*0)+(5*2)+(4*9)+(3*6)+(2*8)+(1*6)=162
162 % 10 = 2
So 640296-86-2 is a valid CAS Registry Number.

640296-86-2Relevant articles and documents

Chemo- and Regioselective Direct Functional Group Installation through Catalytic Hydroxy Group Selective Conjugate Addition of Amino Alcohols to α,β-Unsaturated Sulfonyl Compounds

Li, Zhao,Yazaki, Ryo,Ohshima, Takashi

, p. 3350 - 3353 (2016)

A chemoselective functional group installation through catalytic hydroxy group selective conjugate addition of amino alcohols to a variety of functionalized α,β-unsaturated sulfonyl derivatives was developed. Azide group installation for click chemistry and facile fluorescent labeling onto the less reactive hydroxy group demonstrated the synthetic utility of the present chemoselective catalysis. Moreover, chemo- and regioselective reaction of an unprotected amino diol was achieved for the first time.

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