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1620057-23-9

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1620057-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620057-23-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,0,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1620057-23:
(9*1)+(8*6)+(7*2)+(6*0)+(5*0)+(4*5)+(3*7)+(2*2)+(1*3)=119
119 % 10 = 9
So 1620057-23-9 is a valid CAS Registry Number.

1620057-23-9Relevant articles and documents

A phosphine-mediated stereocontrolled synthesis of Z-enediynes by a vicinal dialkynylation of ethynylphosphonium salts

Reichl, Kyle D.,Radosevich, Alexander T.

, p. 9302 - 9305 (2014/08/05)

Z-Enediynes are prepared by a vicinal dialkynylation of triaryl(arylethynyl)phosphonium cations. The method, which proceeds under mild transition metal-free conditions, can be conducted on multigram scale as a one-pot, phosphine-mediated synthetic cycle giving enediyne products with excellent control of configuration.

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