503-41-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503-41-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 503-41:
(5*5)+(4*0)+(3*3)+(2*4)+(1*1)=43
43 % 10 = 3
So 503-41-3 is a valid CAS Registry Number.
InChI:InChI=1/C2H4O6S2/c3-9(4)2-1-7-10(5,6)8-9/h1-2H2
503-41-3Relevant academic research and scientific papers
Process for the production of ethionic acid
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Page/Page column 4, (2015/07/02)
The present invention discloses a process for the production of ethionic acid by reacting ethanol with sulfur trioxide in a molar ratio of 1:2 at a temperature from 40 to 100° C. in a falling film reactor while cooling the reactor with a cooling means.
