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118451-59-5

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118451-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118451-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,4,5 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 118451-59:
(8*1)+(7*1)+(6*8)+(5*4)+(4*5)+(3*1)+(2*5)+(1*9)=125
125 % 10 = 5
So 118451-59-5 is a valid CAS Registry Number.

118451-59-5Relevant articles and documents

Pentacenequinone-stabilized silver nanoparticles: A reusable catalyst for the diels-alder [4 + 2] cycloaddition reactions

Chopra, Radhika,Sharma, Kamaldeep,Kumar, Manoj,Bhalla, Vandana

, p. 1039 - 1046 (2016/02/18)

Silver nanoparticles (AgNPs) stabilized by aggregates of derivative 4 have been used as catalyst for the construction of synthetically and biologically important [4 + 2] cycloadducts at room temperature.

Ethynyl Ortho Esters as Precursors of Propargyl Cations. The Low-Temperature, Ionic Diels-Alder Addition of Ethyl Propiolate to 1,3-Dienes via Ethynyl Ortho Esters

Gassman, Paul G.,Chavan, Subhash P.

, p. 3407 - 3410 (2007/10/02)

3,3,3-Triethoxypropyne (triethyl orthopropiolate) was added to a series of 1,3-dienes at low temperature in the presence of trimethylsilyl triflate to yield the 4? + 2? products of the formal addition of ethyl propiolate to the 1,3-dienes.

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