1803604-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1803604-98-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,3,6,0 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1803604-98:
(9*1)+(8*8)+(7*0)+(6*3)+(5*6)+(4*0)+(3*4)+(2*9)+(1*8)=159
159 % 10 = 9
So 1803604-98-9 is a valid CAS Registry Number.