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143286-57-1

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143286-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143286-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,8 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 143286-57:
(8*1)+(7*4)+(6*3)+(5*2)+(4*8)+(3*6)+(2*5)+(1*7)=131
131 % 10 = 1
So 143286-57-1 is a valid CAS Registry Number.

143286-57-1Downstream Products

143286-57-1Relevant articles and documents

Synthese von 4-Alkoxy-2-hydroxyphenylketoximen als Metallextraktions-Reagenzien

Beger, J.,Binte, H.-J.,Brunne, L.,Neumann, R.

, p. 269 - 277 (2007/10/02)

The C-Acylation (Friedel-Crafts reaction) of resorcinol with aluminium chloride, the monoetherification in 4-position of the resulting 2,4-dihydroxyphenylketones, and the preparation of oximes (8, 9, 10, 11) from this ketones were investigated.The compounds obtained are characterized by elemental analysis, and the i.r., u.v. and 1H-n.m.r. spectra are discussed.Solubility data of some oximes are determined in water, octane and toluene.The extraction properties for copper-(II)-and iron-(III)-ions are measured by isotope methods in relation to the extragent structure, the extraction time and the pH-range.

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