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14257-49-9

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14257-49-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14257-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,2,5 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 14257-49:
(7*1)+(6*4)+(5*2)+(4*5)+(3*7)+(2*4)+(1*9)=99
99 % 10 = 9
So 14257-49-9 is a valid CAS Registry Number.

14257-49-9Downstream Products

14257-49-9Relevant articles and documents

Direct synthesis of N-substituted, functionalized aspartic acids using alkali maleates and amines

Piispanen, Peter S.,Pihko, Petri M.

, p. 2751 - 2755 (2007/10/03)

A practical and general one-pot synthesis of mono-N-substituted, functionalized aspartic acids has been developed. The N-substituted aspartic acids are formed directly from alkali maleates and primary amines in hot DMSO. Products from several different primary amines can be prepared chemoselectively in moderate to good yields.

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