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109394-58-3

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109394-58-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109394-58-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,9 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109394-58:
(8*1)+(7*0)+(6*9)+(5*3)+(4*9)+(3*4)+(2*5)+(1*8)=143
143 % 10 = 3
So 109394-58-3 is a valid CAS Registry Number.

109394-58-3Downstream Products

109394-58-3Relevant articles and documents

Efficient conversion of acids and esters to amides and transamidation of primary amides using OSU-6

Nammalwar, Baskar,Muddala, Nagendra Prasad,Watts, Field M.,Bunce, Richard A.

, p. 9101 - 9111 (2015/11/09)

OSU-6, an MCM-41 type hexagonal mesoporous silica with strong Bronsted acid properties, has been used to promote the high-yield conversion of carboxylic acids and esters to carboxamides as well as transamidations of primary amides in a one-pot solventless approach. A metal-free heterogeneous catalyst that promotes all of these processes has not been previously reported. OSU-6 enables these transformations to proceed in shorter times and at lower temperatures for a broad range of substrates. An added benefit is that the catalyst can be recycled and reused multiple times without significant loss of activity.

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