155787-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155787-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,7,8 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155787-91:
(8*1)+(7*5)+(6*5)+(5*7)+(4*8)+(3*7)+(2*9)+(1*1)=180
180 % 10 = 0
So 155787-91-0 is a valid CAS Registry Number.