197456-67-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197456-67-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,4,5 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 197456-67:
(8*1)+(7*9)+(6*7)+(5*4)+(4*5)+(3*6)+(2*6)+(1*7)=190
190 % 10 = 0
So 197456-67-0 is a valid CAS Registry Number.
197456-67-0Relevant academic research and scientific papers
MESOGENIC POLYMERS. 6. TWO SERIES OF ISOMERIC POLYAZOMETHINES.
Griffin,Britt,Hung,Steele
, p. 305 - 314 (2007/10/02)
Two homologoous series of alternating rigid-flexible, main chain liquid crystalline polyimines are reported; one based on terephthaldehyde the other based on p-phenylenediamine. It was found through examination of optical microscopic, x-ray diffraction an
