311790-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 311790-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,1,7,9 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 311790-83:
(8*3)+(7*1)+(6*1)+(5*7)+(4*9)+(3*0)+(2*8)+(1*3)=127
127 % 10 = 7
So 311790-83-7 is a valid CAS Registry Number.