207678-81-7 Usage
General Description
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Check Digit Verification of cas no
The CAS Registry Mumber 207678-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,6,7 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 207678-81:
(8*2)+(7*0)+(6*7)+(5*6)+(4*7)+(3*8)+(2*8)+(1*1)=157
157 % 10 = 7
So 207678-81-7 is a valid CAS Registry Number.