1603837-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1603837-85-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,3,8,3 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1603837-85:
(9*1)+(8*6)+(7*0)+(6*3)+(5*8)+(4*3)+(3*7)+(2*8)+(1*5)=169
169 % 10 = 9
So 1603837-85-9 is a valid CAS Registry Number.