338758-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 338758-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,8,7,5 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 338758-89:
(8*3)+(7*3)+(6*8)+(5*7)+(4*5)+(3*8)+(2*8)+(1*9)=197
197 % 10 = 7
So 338758-89-7 is a valid CAS Registry Number.