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114212-43-0

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114212-43-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114212-43-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,2,1 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 114212-43:
(8*1)+(7*1)+(6*4)+(5*2)+(4*1)+(3*2)+(2*4)+(1*3)=70
70 % 10 = 0
So 114212-43-0 is a valid CAS Registry Number.

114212-43-0Relevant articles and documents

179. Die Oxidation von 3-(1-Nitro-2-oxocycloalkyl)propanal

Zuercher, Alois,Hesse, Manfred

, p. 1937 - 1943 (2007/10/02)

Oxidation of the title compound 1 with KMnO4 under neutral condiitons led to the corresponding acid 2, 5-(2,3,4,5-tetrahydro-2-nitro-5-oxo-2-furyl)pentanoic acid (4), and 4-oxononadioic acid (6).On the basis of experimental results the mechanism of the formation of 4 is discussed (Scheme 1).Oxidation of 1 with KMnO4 under basic conditions gave 6 which was transformed to (E)-4,5-dihydro-5-(2'-oxocyclopentyliden)furan-2(3H)-one (12) with benzene/TsOH (Scheme 3).In contrast to this result the corresponding 4-oxoheptandioic acid (22) yields 1,6-dioxaspirononan-2,7-dione (23) only (Scheme 4).

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