6889-02-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6889-02-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,8 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6889-02:
(6*6)+(5*8)+(4*8)+(3*9)+(2*0)+(1*2)=137
137 % 10 = 7
So 6889-02-7 is a valid CAS Registry Number.
6889-02-7Relevant 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
