158817-37-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158817-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,8,1 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 158817-37:
(8*1)+(7*5)+(6*8)+(5*8)+(4*1)+(3*7)+(2*3)+(1*7)=169
169 % 10 = 9
So 158817-37-9 is a valid CAS Registry Number.
158817-37-9Relevant articles and documents
Reactions of a Cyclotrisilane with Alkynes: Synthesis and First Crystal Structure of 1,2-Disilacyclobut-3-enes
Belzner, Johannes,Ihmels, Heiko,Kneisel, Boris O.,Herbst-Irmer, Regine
, p. 1989 - 1990 (2007/10/02)
1,2-Disilacyclobut-3-enes are synthesized quantitatively from cyclotrisilane 1 and alkynes; the solid-state structure of 4d is determined by single-crystal X-ray diffraction.