121535-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121535-90-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,3 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121535-90:
(8*1)+(7*2)+(6*1)+(5*5)+(4*3)+(3*5)+(2*9)+(1*0)=98
98 % 10 = 8
So 121535-90-8 is a valid CAS Registry Number.