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228730-28-7

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228730-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 228730-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,7,3 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 228730-28:
(8*2)+(7*2)+(6*8)+(5*7)+(4*3)+(3*0)+(2*2)+(1*8)=137
137 % 10 = 7
So 228730-28-7 is a valid CAS Registry Number.

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