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137804-77-4

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137804-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137804-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,0 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137804-77:
(8*1)+(7*3)+(6*7)+(5*8)+(4*0)+(3*4)+(2*7)+(1*7)=144
144 % 10 = 4
So 137804-77-4 is a valid CAS Registry Number.

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