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16920-45-9

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16920-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16920-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16920-45:
(7*1)+(6*6)+(5*9)+(4*2)+(3*0)+(2*4)+(1*5)=109
109 % 10 = 9
So 16920-45-9 is a valid CAS Registry Number.
InChI:InChI=1/CH2O3.Ag/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1

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