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 articles and documents
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.
