135983-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135983-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,8 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 135983-09:
(8*1)+(7*3)+(6*5)+(5*9)+(4*8)+(3*3)+(2*0)+(1*9)=154
154 % 10 = 4
So 135983-09-4 is a valid CAS Registry Number.