71042-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71042-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,4 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71042-78:
(7*7)+(6*1)+(5*0)+(4*4)+(3*2)+(2*7)+(1*8)=99
99 % 10 = 9
So 71042-78-9 is a valid CAS Registry Number.
InChI:InChI=1/C12H9ClO5S2/c13-19(14,15)11-7-4-8-12(9-11)20(16,17)18-10-5-2-1-3-6-10/h1-9H