131843-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131843-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,8,4 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131843-17:
(8*1)+(7*3)+(6*1)+(5*8)+(4*4)+(3*3)+(2*1)+(1*7)=109
109 % 10 = 9
So 131843-17-9 is a valid CAS Registry Number.
131843-17-9Relevant articles and documents
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Deleris, Gerard,Gadras, Alain,Dunogues, Jacques
, p. 5999 - 6010 (2007/10/02)
N-sulfinyl derivatives of sulfamides give selective ene reactions involving the sulfonamide function. The formed ene adducts react with hexamethyldisilazane to afford original sulfamides resulting from allylation on the less nucleophilic nitrogen atom.
