157763-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157763-74-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,6 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157763-74:
(8*1)+(7*5)+(6*7)+(5*7)+(4*6)+(3*3)+(2*7)+(1*4)=171
171 % 10 = 1
So 157763-74-1 is a valid CAS Registry Number.