87747-42-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87747-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,4 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87747-42:
(7*8)+(6*7)+(5*7)+(4*4)+(3*7)+(2*4)+(1*2)=180
180 % 10 = 0
So 87747-42-0 is a valid CAS Registry Number.