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15807-80-4

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15807-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15807-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,0 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 15807-80:
(7*1)+(6*5)+(5*8)+(4*0)+(3*7)+(2*8)+(1*0)=114
114 % 10 = 4
So 15807-80-4 is a valid CAS Registry Number.

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