680198-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 680198-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,0,1,9 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 680198-68:
(8*6)+(7*8)+(6*0)+(5*1)+(4*9)+(3*8)+(2*6)+(1*8)=189
189 % 10 = 9
So 680198-68-9 is a valid CAS Registry Number.
680198-68-9Relevant academic research and scientific papers
6-Phenyldibenzo[b,d]phosphinine
De Koe, Pieter,Bickelhaupt, Friedrich
, p. 782 - 786 (2007/10/03)
The title compound (2b) was obtained in 7 steps from 2-phenylbenzhydrol (5). The phenyl substituent of 2b confers thermal stability to the [5]phosphaphenanthrene system by steric protection; in addition, conjugative interaction is revealed by the UV spect
