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4-Pentyn-2-ol, 1-(phenylmethoxy)-, acetate, (S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

189504-90-3

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189504-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189504-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,5,0 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189504-90:
(8*1)+(7*8)+(6*9)+(5*5)+(4*0)+(3*4)+(2*9)+(1*0)=173
173 % 10 = 3
So 189504-90-3 is a valid CAS Registry Number.

189504-90-3Relevant academic research and scientific papers

Synthesis of substituted Se-phenyl selenocarboxylates from terminal alkynes

Tiecco, Marcello,Testaferri, Lorenzo,Temperini, Andrea,Bagnoli, Luana,Marini, Francesca,Santi, Claudio,Terlizzi, Raffaella

, p. 3447 - 3458 (2007/10/03)

Se-Phenyl selenocarboxylates have been conveniently prepared from (phenylseleno)acetylenes by treatment with p-toluenesulfonic acid monohydrate in dichloromethane. This easy conversion is compatible with a broad range of oxygen- and nitrogen-containing functional groups. The Se-phenyl selenocarboxylates were easily converted into the corresponding esters and amides. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

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