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77501-99-6

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77501-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77501-99-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,0 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77501-99:
(7*7)+(6*7)+(5*5)+(4*0)+(3*1)+(2*9)+(1*9)=146
146 % 10 = 6
So 77501-99-6 is a valid CAS Registry Number.

77501-99-6Downstream Products

77501-99-6Relevant articles and documents

Reactivity of some Quinones with Alkylaluminium Compounds

Leal, J. M.,Arcos, J.,Garcia, B.

, p. 887 - 896 (2007/10/02)

The reactions of 2-methyl-1,4-naphthoquinone with triethylaluminium and 2,5-di-t-butyl-1,4-benzoquinone with triisobutylaluminium were studied.In each of these reactions three different products were obtained and characterized by n.m.r. and i.r.U.V. spectrophotometry showed that 2-methyl-1,4-naphthoquinone behaves as a weak base and the ionization constants pK1 = -0.922 and pK2 = -4.065 were reported in aqueous HClO4.This is a useful information for elucidating the mechanism of the first reaction studied, based on the different basicity of the carbonyl groups.

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