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402912-75-8

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402912-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402912-75-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,1 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 402912-75:
(8*4)+(7*0)+(6*2)+(5*9)+(4*1)+(3*2)+(2*7)+(1*5)=118
118 % 10 = 8
So 402912-75-8 is a valid CAS Registry Number.

402912-75-8Relevant articles and documents

A supramolecular system for quantifying aromatic stacking interactions

Adams, Harry,Hunter, Christopher A.,Lawson, Kevin R.,Perkins, Julie,Spey, Sharon E.,Urch, Christopher J.,Sanderson, John M.

, p. 4863 - 4877 (2001)

A supramolecular complex for investigating the thermodynamic properties of intermolecular aromatic stacking interactions has been developed. The conformation of the complex is locked in a single well-defined conformation by an array of H-bonding interacti

Self-assembly of imidazolium-based rodlike ionic liquid crystals: transition from lamellar to micellar organization

Cheng, Xiaohong,Bai, Xueqing,Jing, Shan,Ebert, Helgard,Prehm, Marko,Tschierske, Carsten

supporting information; experimental part, p. 4588 - 4601 (2010/08/19)

By using aryl-amination chemistry, a series of rodlike 1-phenyl1H- imidazole-based liquid crystals (LCs) and related imidazolium-based ionic liquid crystals (ILCs) has been prepared. The number and length of the C-terminal chains (at the noncharged end of the rodlike core) and the length of the N-terminal chain (on the imidazolium unit in the ILCs) were modified and the influence of these structural parameters on the mode of self-assembly in LC phases was investigated by polarizing microscopy, differential scanning calorimetry, and X-ray diffraction. For the single-chain imidazole derivatives nematic phases (N) and bilayer SmA2 phases were found, but upon increasing the number of alkyl chains the LC phases were lost. For the related imidazolium salts LC phases were preserved upon increasing the number and length of the C-terminal chains and in this series it leads to the phase sequence SmA-columnar (Col)-micellar cubic (Cuby1/Pm3n). Elongation of the N-terminal chain gives the reversed sequence. Short Nterminal chains prefer an end-to-end packing of the mesogens in which these chains are separated from the C-terminal chains. Elongation of the N-terminal chain leads to a mixing of N- and C-terminal chains, which is accompanied by complete intercalation of the aromatic cores. In the smectic phases this gives rise to a transition from bilayer (SmA2) to monolayer smectic (SmA) phases. For the columnar and cubic phases the segregated end-to-end packing leads to core-shell aggregates. In this case, elongation of the N-terminal chains distorts core-shell formation and removes Cub1 and Col phases in favor of single-layer SmA phases. Hence, by tailoring the length of the N-terminal chain, a crossover from taper-shaped to polycatenar LC tectons was achieved, which provides a powerful tool for control of self-assembly in ILCs.

Lipophilic thioglycosides for the Solution-Phase synthesis of oligosaccharides using biphasic Liquid-Liquid separation

Encinas, Lourdes,Chiara, Jose Luis

experimental part, p. 2163 - 2173 (2009/09/29)

A simple "heavy" lipophilic tag readily prepared from inexpensive gallic acid can greatly simplify the purification steps in oligosaccharide synthesis through liquid-liquid extraction (LLE) using two immiscible organic solvents. By introducing the tag at

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