137128-40-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137128-40-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,1,2 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137128-40:
(8*1)+(7*3)+(6*7)+(5*1)+(4*2)+(3*8)+(2*4)+(1*0)=116
116 % 10 = 6
So 137128-40-6 is a valid CAS Registry Number.