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13047-57-9

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13047-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13047-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,4 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13047-57:
(7*1)+(6*3)+(5*0)+(4*4)+(3*7)+(2*5)+(1*7)=79
79 % 10 = 9
So 13047-57-9 is a valid CAS Registry Number.

13047-57-9Relevant articles and documents

One-Pot synthesis of sulfonamides from primary and secondary amine derived sulfonate salts using cyanuric chloride

Rad, Mohammad Navid Soltani,Khalafi-Nezhad, Ali,Asrari, Zeinab,Behrouz, Somayeh,Amini, Zohreh,Behrouz, Marzieh

, p. 3983 - 3988 (2009)

A convenient, mild and efficient one-pot synthesis of new sulfonamides is described. The reaction of primary or secondary amine derived sulfonate salts in the presence of cyanuric chloride, triethylamine as base, and anhydrous acetonitrile as solvent at room temperature gives the corresponding sulfonamides in good to excellent yields. Georg Thieme Verlag Stuttgart.

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