133805-20-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133805-20-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,0 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133805-20:
(8*1)+(7*3)+(6*3)+(5*8)+(4*0)+(3*5)+(2*2)+(1*0)=106
106 % 10 = 6
So 133805-20-6 is a valid CAS Registry Number.
133805-20-6Relevant articles and documents
Aromatic polyimide silanol compounds, precursors and polymers thereof
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, (2008/06/13)
Silanol-terminated aromatic imide compounds of Formula I STR1 where R3 and R4 are each selected from the group consistsing of a C1 to C6 alkyl group, an unsubstituted aryl group and a substituted aryl group, Z i