103639-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103639-88-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,6,3 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 103639-88:
(8*1)+(7*0)+(6*3)+(5*6)+(4*3)+(3*9)+(2*8)+(1*8)=119
119 % 10 = 9
So 103639-88-9 is a valid CAS Registry Number.