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127558-27-4

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127558-27-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127558-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,5,5 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 127558-27:
(8*1)+(7*2)+(6*7)+(5*5)+(4*5)+(3*8)+(2*2)+(1*7)=144
144 % 10 = 4
So 127558-27-4 is a valid CAS Registry Number.

127558-27-4Downstream Products

127558-27-4Relevant 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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