155977-87-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155977-87-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,9,7 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 155977-87:
(8*1)+(7*5)+(6*5)+(5*9)+(4*7)+(3*7)+(2*8)+(1*7)=190
190 % 10 = 0
So 155977-87-0 is a valid CAS Registry Number.