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402568-04-1

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402568-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402568-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,5,6 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 402568-04:
(8*4)+(7*0)+(6*2)+(5*5)+(4*6)+(3*8)+(2*0)+(1*4)=121
121 % 10 = 1
So 402568-04-1 is a valid CAS Registry Number.

402568-04-1Relevant articles and documents

Addition of mixed (Alkenyl)dialkylzincates to vicinal diketo esters

Selter, Lars,Harms, Klaus,Koert, Ulrich

, p. 1215 - 1230 (2017)

Methods for the regioselective alkylation, arylation, and alkenylation of α,β-diketo esters using organozinc reagents are reported. Alkylation and arylation at the α-position is possi-ble using diorganozinc compounds. Alkenylation can be achieved using mixed (alkenyl)dineopentylzincates.

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