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132644-83-8

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132644-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132644-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,6,4 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 132644-83:
(8*1)+(7*3)+(6*2)+(5*6)+(4*4)+(3*4)+(2*8)+(1*3)=118
118 % 10 = 8
So 132644-83-8 is a valid CAS Registry Number.

132644-83-8Downstream Products

132644-83-8Relevant articles and documents

Tandem Addition-Cycloaddition Reaction of Oximes with 2,3-Bis(phenylsulfonyl)-1,3-butadiene as a Method for 4-Piperidone Synthesis

Norman, Bryan H.,Gareau, Yves,Padwa, Albert

, p. 2154 - 2161 (2007/10/02)

The reaction of oximes with 2,3-bis(phenylsulfonyl)-1,3-butadiene affords 7-oxa-1-azanorbornanes in high yield.The formation of the bicyclic isoxazolidine involves conjugate addition of the oxime onto the diene to give a transient nitrone that ten undergo

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