167304-90-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167304-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,3,0 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 167304-90:
(8*1)+(7*6)+(6*7)+(5*3)+(4*0)+(3*4)+(2*9)+(1*0)=137
137 % 10 = 7
So 167304-90-7 is a valid CAS Registry Number.