88640-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 88640-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,6,4 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 88640-33:
(7*8)+(6*8)+(5*6)+(4*4)+(3*0)+(2*3)+(1*3)=159
159 % 10 = 9
So 88640-33-9 is a valid CAS Registry Number.