7615-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7615-98-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,1 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7615-98:
(6*7)+(5*6)+(4*1)+(3*5)+(2*9)+(1*8)=117
117 % 10 = 7
So 7615-98-7 is a valid CAS Registry Number.