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98922-57-7

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98922-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98922-57-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,2 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98922-57:
(7*9)+(6*8)+(5*9)+(4*2)+(3*2)+(2*5)+(1*7)=187
187 % 10 = 7
So 98922-57-7 is a valid CAS Registry Number.

98922-57-7Downstream Products

98922-57-7Relevant articles and documents

Fe-exchanged montmorillonite K10 - The first heterogeneous catalyst for acylation of sulfonamides with carboxylic acid anhydrides

Singh, Devendrapratap U.,Singh, Pankajkumar R.,Samant, Shriniwas D.

, p. 4805 - 4807 (2007/10/03)

Fe-exchanged montmorillonite K10 catalyzes a highly efficient reaction between sterically and electronically diverse sulfonamides and carboxylic acid anhydrides to furnish N-acylsulfonamides in excellent yield and high selectivity. The catalyst can also be reused several times.

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