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133957-58-1

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133957-58-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133957-58-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,5 and 7 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133957-58:
(8*1)+(7*3)+(6*3)+(5*9)+(4*5)+(3*7)+(2*5)+(1*8)=151
151 % 10 = 1
So 133957-58-1 is a valid CAS Registry Number.

133957-58-1Downstream Products

133957-58-1Relevant articles and documents

Indium-Induced Reaction of Phenacyl Iodide. Deiodinative Dimerization to β,γ-Epoxy Ketone and Aldol Condensation with Aldehydes

Araki, Shuki,Butsugan, Yasuo

, p. 727 - 729 (1991)

The reaction of phenacyl iodide with indium metal gave 3,4-epoxy-1,3-diphenyl-1-butanone which, on treatment with silica gel, gave 2,4-diphenylfuran and 2,4-diphenyl-4-oxobutanal.Metallic indium as well as indium(I) iodide were found to mediate the aldol condensation between α-halo ketone and aldehyde.

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