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116972-39-5

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116972-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 116972-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,9,7 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 116972-39:
(8*1)+(7*1)+(6*6)+(5*9)+(4*7)+(3*2)+(2*3)+(1*9)=145
145 % 10 = 5
So 116972-39-5 is a valid CAS Registry Number.

116972-39-5Downstream Products

116972-39-5Relevant articles and documents

Acid-catalyzed reactions of six- and seven-membered cyclic hemiperacetals and peracetals and of related bicyclic ozonides

Griesbaum, Karl,Kiesel, Gilbert,Mertens, Henri,Krieger-Beck, Petra,Henke, Henning

, p. 2198 - 2204 (2007/10/02)

HCl-catalyzed reactions of the hemiperacetals 3-methoxy-3-methyl-7-hydroxy-1,2-dioxepane (1a) and 3-methoxy-3-methyl-6-hydroxy-1,2-dioxane (1b) and of the related ozonides 1-methyl-6,7,8-trioxabicyclooctane (2a) and 1-methyl-5,6,7-trioxabicycloheptane (2b) gave peroxidic monocyclic (11-13), bicyclic (14), and (or) tricyclic (15) products.By contrast, reactions of the peracetals corresponding to 1a and 1b, viz., 3-methyl-3,7-dimethoxy-1,2-dioxepane (13a) and 3-methyl-3,6-dimethoxy-1,2-dioxane (13b) gave only non-peroxide products.Reactions of the persubstituted peracetals 3,6-dimethoxy-3,6-dimethyl-1,2-dioxane (25) and 3,6-dimethoxy-3-isopropyl-6-methyl-1,2-dioxane (27) also gave non-peroxidic products, which resulted from fragmentation of the carbon skeletons.

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