213900-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213900-42-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,9,0 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 213900-42:
(8*2)+(7*1)+(6*3)+(5*9)+(4*0)+(3*0)+(2*4)+(1*2)=96
96 % 10 = 6
So 213900-42-6 is a valid CAS Registry Number.