321149-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321149-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,1,4 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 321149-13:
(8*3)+(7*2)+(6*1)+(5*1)+(4*4)+(3*9)+(2*1)+(1*3)=97
97 % 10 = 7
So 321149-13-7 is a valid CAS Registry Number.
321149-13-7Relevant articles and documents
Acid anhydrides
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Page/Page column 22-23, (2008/06/13)
Novel polyimides substituted by a substituent having an alkyl or fluoroalkyl group and having reduced water absorption; a process for producing these novel polyimides; and novel acid dianhydrides to be used in the production thereof. A polyimide containin