19138-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19138-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,1,3 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 19138-68:
(7*1)+(6*9)+(5*1)+(4*3)+(3*8)+(2*6)+(1*8)=122
122 % 10 = 2
So 19138-68-2 is a valid CAS Registry Number.
InChI:InChI=1/Cu.S/rCuS/c1-2