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1567732-56-2

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1567732-56-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1567732-56-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,7,7,3 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1567732-56:
(9*1)+(8*5)+(7*6)+(6*7)+(5*7)+(4*3)+(3*2)+(2*5)+(1*6)=202
202 % 10 = 2
So 1567732-56-2 is a valid CAS Registry Number.

1567732-56-2Downstream Products

1567732-56-2Relevant articles and documents

On the reactivity of nitrosoimidazoles with acids (the Cusmano-Ruccia reaction): A continuous source of new ring-into-ring interconversion

Cosimelli, Barbara,Frenna, Vincenzo,Rambaldi, Mirella,Severi, Elda,Spinelli, Domenico

, p. 1488 - 1490 (2014)

An extension of the 'Cusmano-Ruccia' reaction is reported. 6-(4-chlorophenyl)-3-methyl-5-nitrosoimidazo[2,1-b]oxazole by the action of hydrochloric acid gives 3-(4-chlorobenzoyl)-5-methyl-1,2,4-oxadiazole (13); presumably via ammonium ion, CO2 and methanol elimination. The relevance of the nature of the atom of the B-ring linked to C-2 of the imidazole for the occurrence of the ring-into-ring interconversion has been once more confirmed.

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