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53991-40-5

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53991-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53991-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,9 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 53991-40:
(7*5)+(6*3)+(5*9)+(4*9)+(3*1)+(2*4)+(1*0)=145
145 % 10 = 5
So 53991-40-5 is a valid CAS Registry Number.

53991-40-5Relevant articles and documents

Copper(II)-catalyzed aerobic oxidation of hydrazides to Azo intermediates and their Diels-Alder versus ene trapping

Chaiyaveij, Duangduan,Whiting, Andrew

supporting information, (2021/12/01)

The oxidation of diethyl 1, 2-hydrazinedicarboxylate using a catalytic Cu(II)-oxazoline system occurs at RT in air, resulting in azo generation, which can then be trapped in situ via hetero-Diels-Alder (HDA) and competitive ene-reactions, with chemoselect

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