68238-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68238-93-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,3 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 68238-93:
(7*6)+(6*8)+(5*2)+(4*3)+(3*8)+(2*9)+(1*3)=157
157 % 10 = 7
So 68238-93-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H4Cl4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,7H