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113643-91-7

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113643-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113643-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,6,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113643-91:
(8*1)+(7*1)+(6*3)+(5*6)+(4*4)+(3*3)+(2*9)+(1*1)=107
107 % 10 = 7
So 113643-91-7 is a valid CAS Registry Number.

113643-91-7Downstream Products

113643-91-7Relevant articles and documents

An expeditious and convenient one pot synthesis of 2,5-disubstituted-1,3,4-oxadiazoles

Mashraqui, Sabir H.,Ghadigaonkar, Shailesh G.,Kenny, Rajesh S.

, p. 2541 - 2545 (2007/10/03)

A convenient, one pot procedure is reported for the synthesis of a variety of 2,5-disubstituted-1,3,4-oxadiazoles by condensing monoarylhydrazides with acid chlorides in HMPA solvent under the microwave heating. The yields are good to excellent, the process is rapid and does not need any added acid catalyst or dehydrating reagent.

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