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1217885-87-4

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1217885-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1217885-87-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,8,8 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1217885-87:
(9*1)+(8*2)+(7*1)+(6*7)+(5*8)+(4*8)+(3*5)+(2*8)+(1*7)=184
184 % 10 = 4
So 1217885-87-4 is a valid CAS Registry Number.

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