17781-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17781-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,8 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17781-34:
(7*1)+(6*7)+(5*7)+(4*8)+(3*1)+(2*3)+(1*4)=129
129 % 10 = 9
So 17781-34-9 is a valid CAS Registry Number.
InChI:InChI=1/C6H5O3S.Hg.H2O/c7-10(8,9)6-4-2-1-3-5-6;;/h2-5H,(H,7,8,9);;1H2/q;+1;/p-2/rC6H6HgO4S/c8-7-5-1-3-6(4-2-5)12(9,10)11/h1-4,8H,(H,9,10,11)/p-1