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21572-18-9

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21572-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21572-18-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,7 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21572-18:
(7*2)+(6*1)+(5*5)+(4*7)+(3*2)+(2*1)+(1*8)=89
89 % 10 = 9
So 21572-18-9 is a valid CAS Registry Number.

21572-18-9Relevant academic research and scientific papers

The Reaction of Germanium Atoms with Organic Halides

Mochida, Kunio,Tashiro, Kumiko

, p. 1105 - 1108 (1987)

Co-condensation of thermally evaporated germanium vapor with organic halides yields a mixture of trihalogermyl derivatives and tetrahalogermanes as major products.The nature of these reactions is discussed.

Chemistry of Germanium Atoms. II. Reactions of Thermally Evaporated Germanium Vapor with Organic Halides

Mochida, Kunio,Tashiro, Kumiko,Yoshida, Yasuhiro,Mizuno, Yasuhisa

, p. 1247 - 1250 (2007/10/02)

Thermally generated germanium atoms were found to react with organic halides by insertion into carbon-halogen bonds.The resulting germylenes abstracted halogens from organic halides to form trihalogermyl derivatives.Tetrahalogermanes were also formed by t

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