310902-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 310902-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,0,9,0 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 310902-13:
(8*3)+(7*1)+(6*0)+(5*9)+(4*0)+(3*2)+(2*1)+(1*3)=87
87 % 10 = 7
So 310902-13-7 is a valid CAS Registry Number.