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40888-37-7

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40888-37-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40888-37-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,8 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40888-37:
(7*4)+(6*0)+(5*8)+(4*8)+(3*8)+(2*3)+(1*7)=137
137 % 10 = 7
So 40888-37-7 is a valid CAS Registry Number.

40888-37-7Relevant articles and documents

Sulfonamidation of halogen-substituted electrophiles with N-(2,2,2-trichloroethyl)arenesulfonamides

Chernysheva,Nikitin,Rozentsveig

, p. 824 - 827 (2017/08/02)

Reactions of N-(2,2,2-trichloroethyl)arenesulfonamides with primary alkyl bromides and iodides, allyl bromide, chloroacetonitrile, and benzyl chloride in acetonitrile on heating in the presence of potassium carbonate gave the corresponding N-alkyl-N-(2,2,2-trichloroethyl)arenesulfonamides.

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