887765-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 887765-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,7,7,6 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 887765-91:
(8*8)+(7*8)+(6*7)+(5*7)+(4*6)+(3*5)+(2*9)+(1*1)=255
255 % 10 = 5
So 887765-91-5 is a valid CAS Registry Number.