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163188-54-3

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163188-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 163188-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,1,8 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 163188-54:
(8*1)+(7*6)+(6*3)+(5*1)+(4*8)+(3*8)+(2*5)+(1*4)=143
143 % 10 = 3
So 163188-54-3 is a valid CAS Registry Number.

163188-54-3Relevant articles and documents

Synthesis, Properties, and Thermodynamic Ionization Constants of α-Phenylstyrylacrylohydroxamic Acids

Patel, Kalpesh R.,Menon, Sobhana K.,Agrawal, Yadvendra K.

, p. 423 - 425 (2007/10/03)

The synthesis and properties of eight new hydroxamic acids derived from α-phenylstyrylacrylic acids are described. These hydroxamic acids, which are crystalline compounds, were characterized by their ultraviolet, infrared, and NMR spectra. The purity was checked by HPLC and HPTLC. The nonaqueous titrations and alkaline hydrolysis are reported. Thermodynamic ionization constants at (25 and 35 +/- 0.1) deg C are determined. Preliminary studies show that these acids form a chloroform-extractable violet complex with vanadium(V) in 6 M hydrochloric acid solutions.

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