71969-51-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71969-51-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,6 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71969-51:
(7*7)+(6*1)+(5*9)+(4*6)+(3*9)+(2*5)+(1*1)=162
162 % 10 = 2
So 71969-51-2 is a valid CAS Registry Number.
71969-51-2Relevant articles and documents
Aromatic dinitro and diamino intermediates
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, (2008/06/13)
This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising th