90577-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90577-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,5,7 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 90577-18:
(7*9)+(6*0)+(5*5)+(4*7)+(3*7)+(2*1)+(1*8)=147
147 % 10 = 7
So 90577-18-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H5NO7S2.2Na/c9-7(10)5-3-4(16-17(13,14)15)1-2-6(5)8(11)12;;/h1-3H,(H,9,10)(H,13,14,15);;/q;2*+1/p-2