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219806-93-6

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219806-93-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219806-93-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,0 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 219806-93:
(8*2)+(7*1)+(6*9)+(5*8)+(4*0)+(3*6)+(2*9)+(1*3)=156
156 % 10 = 6
So 219806-93-6 is a valid CAS Registry Number.

219806-93-6Relevant articles and documents

Bronsted acidic ionic liquid based magnetic nanoparticles: A new promoter for the Biginelli synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones

Safari, Javad,Zarnegar, Zohre

, p. 358 - 365 (2014)

The Bronsted acidic ionic liquid 1-methyl-3-(3- trimethoxysilylpropyl) imidazolium hydrogen sulfate was immobilized on magnetic Fe3O4 nanoparticles (MNPs-IL-HSO4). The properties of the magnetic nanocatalyst were character

CoNiFe2O4@Silica-SO3H nanoparticles: New recyclable magnetic nanocatalyst for the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones under solvent-free conditions

Karimian, Azam,Rad, Masoud Saadati,Mahdavi, Elham

, p. 1702 - 1714 (2020/09/07)

A useful and green synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones derivatives were achieved by one-pot cyclocondensation between substituted aryl aldehydes, diketone/ketoester, and urea/thiourea using magnetic CoNiFe2O4@Silica-

Efficient Catalytic Synthesis of 3,4-Dihydropyrimidin-2-ones/thiones via Little Acidic Ionic Liquid Combined with Rapid Heating Ways

Zhang, Guo-Ping,Tian, Da-Yu,Shi, Wang-Ming

, p. 2522 - 2531 (2018/09/29)

Catalytic synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones was efficiently promoted by as little as 2.5?mol% of Br?nsted acidic ionic liquid [(CH2)3SO3HMIM]HSO4 catalyst loading via rapid heating ways. Inter

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