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54299-81-9

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54299-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54299-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,2,9 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54299-81:
(7*5)+(6*4)+(5*2)+(4*9)+(3*9)+(2*8)+(1*1)=149
149 % 10 = 9
So 54299-81-9 is a valid CAS Registry Number.

54299-81-9Downstream Products

54299-81-9Relevant articles and documents

1,3-Dipolar Cycloadditions, 89. New Contributions to the Chemistry of Diphenylnitrilimine

Clovis, James S.,Fliege, Werner,Huisgen, Rolf

, p. 3062 - 3070 (2007/10/02)

Methyl propiolate, tetrolate, and phenylpropiolate combine with diphenylnitrilimine (1) to afford regioisomeric cycloadducts; the preferential orientation shifts in the sequence given from the pyrazole-5-carboxylic ester to the 4-carboxylic ester.Correspo

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