940005-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 940005-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,0,0,0 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 940005-44:
(8*9)+(7*4)+(6*0)+(5*0)+(4*0)+(3*5)+(2*4)+(1*4)=127
127 % 10 = 7
So 940005-44-7 is a valid CAS Registry Number.
940005-44-7Relevant articles and documents
Method for Producing Sulfonamides
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Page/Page column 17-18, (2010/09/17)
The invention relates to methods for producing sulfonamides of formula I, wherein the variables have the designations cited in the description, by reacting m-nitro-benzoic acid chlorides of formula II with aminosulfons of formula III, under the influence