199786-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199786-54-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,8 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 199786-54:
(8*1)+(7*9)+(6*9)+(5*7)+(4*8)+(3*6)+(2*5)+(1*4)=224
224 % 10 = 4
So 199786-54-4 is a valid CAS Registry Number.
199786-54-4Relevant academic research and scientific papers
Frahn,Schluter
, p. 1301 - 1304 (1997)
A high yield synthesis of two phenylene and biphenylene derived AB-type monomers for Suzuki polycondensation is described. They carry solubilizing alkyl groups and free and methyl-protected hydroxy functional groups for further modifications.
