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45274-31-5

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45274-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 45274-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,5,2,7 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 45274-31:
(7*4)+(6*5)+(5*2)+(4*7)+(3*4)+(2*3)+(1*1)=115
115 % 10 = 5
So 45274-31-5 is a valid CAS Registry Number.

45274-31-5Downstream Products

45274-31-5Relevant articles and documents

Fatty acid monomer, preparation method and thermoplastic macromolecule synthesized through application

-

Paragraph 0018; 0019, (2017/09/02)

The invention discloses a fatty acid monomer, a preparation method and a thermoplastic macromolecule synthesized through application. Tetramethyl guanidine and other catalysts are mainly utilized to catalyze a monomer containing halogen elements (Cl, Br and I) or halogen element and fatty acid, and the fatty acid monomer and thermoplastic macromolecule are obtained through efficient reaction. The application range can be thus widened by functionally improving the obtained fatty acid monomer and thermoplastic macromolecule. The reaction process is mild in condition, the catalytic efficiency of the catalysts is very high, few side reactions is produced, products are easy to separate and purify, and the fatty acid monomer and the thermoplastic macromolecule have a very high industrial application prospect.

A green approach toward oleic- and undecylenic acid-derived polyurethanes

Gonzalez-Paz,Lluch,Lligadas,Ronda,Galia,Cadiz

experimental part, p. 2407 - 2416 (2012/04/11)

Naturally occurring oleic and undecylenic acids were used as raw materials for the synthesis of novel polyurethanes (PUs). The application of environmentally friendly thiol-ene additions to 10-undecenoate and oleate derivatives was studied with the goal of obtaining renewable diols. The resulting monomers were then polymerized with 4,4′-methylenebis (phenylisocyanate), in N,N-dimethylformamide solution using tin (II) 2-ethylhexanoate as catalyst, to produce the corresponding thermoplastic PUs (TPUs). Also, ultrasound irradiation has been tested to improve the synthesis of PU. Under these conditions, TPUs were obtained in high yields (80-99%) with weight-average molecular weights in the 36-83 kDa range. The chemical structures of PUs were assessed by FTIR and NMR spectroscopy. The thermal and mechanical properties of the synthesized TPUs have been studied and they showed a clear dependence on the structure of the parent diol. MTT test was carried out to asses the potential cytotoxicity of the prepared PUs, indicating no cytotoxic response.

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