135977-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135977-24-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,7 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135977-24:
(8*1)+(7*3)+(6*5)+(5*9)+(4*7)+(3*7)+(2*2)+(1*4)=161
161 % 10 = 1
So 135977-24-1 is a valid CAS Registry Number.