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70907-20-9

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70907-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70907-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,0 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 70907-20:
(7*7)+(6*0)+(5*9)+(4*0)+(3*7)+(2*2)+(1*0)=119
119 % 10 = 9
So 70907-20-9 is a valid CAS Registry Number.

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