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77536-21-1

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77536-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77536-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,3 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77536-21:
(7*7)+(6*7)+(5*5)+(4*3)+(3*6)+(2*2)+(1*1)=151
151 % 10 = 1
So 77536-21-1 is a valid CAS Registry Number.

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