137847-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137847-61-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,4 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137847-61:
(8*1)+(7*3)+(6*7)+(5*8)+(4*4)+(3*7)+(2*6)+(1*1)=161
161 % 10 = 1
So 137847-61-1 is a valid CAS Registry Number.