137041-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137041-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,4 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137041-31:
(8*1)+(7*3)+(6*7)+(5*0)+(4*4)+(3*1)+(2*3)+(1*1)=97
97 % 10 = 7
So 137041-31-7 is a valid CAS Registry Number.