121220-29-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121220-29-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,2,2 and 0 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121220-29:
(8*1)+(7*2)+(6*1)+(5*2)+(4*2)+(3*0)+(2*2)+(1*9)=59
59 % 10 = 9
So 121220-29-9 is a valid CAS Registry Number.
121220-29-9Relevant articles and documents
Tris(t-butyldimethylsilyl)trimethylsilylethylene and Tetrakis(dimethylsilyl)ethylene. The Most Twisted and Untwisted Tetrasilylethylenes
Sakurai, Hideki,Ebata, Keisuke,Sakamoto, Kenkichi
, p. 965 - 968 (1988)
Tris(t-butyldimethylsilyl)trimethylsilylethylene and tetrakis(dimethylsilyl)ethylene were prepared.Structures of these most twisted and untwisted olefins are determined by X-ray diffraction.
