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940447-63-2

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940447-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 940447-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,0,4,4 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 940447-63:
(8*9)+(7*4)+(6*0)+(5*4)+(4*4)+(3*7)+(2*6)+(1*3)=172
172 % 10 = 2
So 940447-63-2 is a valid CAS Registry Number.

940447-63-2Downstream Products

940447-63-2Relevant articles and documents

An efficient method for the synthesis of N-acylsulfonamides: One-pot sulfonylation and acylation of primary arylamines under solvent-free conditions

Massah, Ahmad R.,Azadi, Davood,Aliyan, Hamid,Momeni, Ahmad R.,Naghash, Hamid Javaherian,Kazemi, Foad

experimental part, p. 233 - 240 (2009/05/26)

The preparation of N-acylsulfonamides is described using primary amines, arylsulfonyl chlorides and acyl chlorides. Reaction of primary aryl amines with arylsulfonyl chlorides in the presence of NaHCO3 produced N-arylsulfonamides, which reacted in situ with benzoyl chloride furnishing the corresponding N-benzoyl-N-arylsulfonamides in 72-96% yields. Accordingly, 4-nitrobenzoyl chloride and 3,5-dinitrobenzoyl chloride were used as acylating agents. All the reactions were carried out under solvent-free conditions at room temperature and the products were isolated after simple work-up in high yields and purity.

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