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2-Benzyl-1,3-dimethylbenzimidazolium-tetrafluoroborat is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

143857-75-4

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143857-75-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143857-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,5 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 143857-75:
(8*1)+(7*4)+(6*3)+(5*8)+(4*5)+(3*7)+(2*7)+(1*5)=154
154 % 10 = 4
So 143857-75-4 is a valid CAS Registry Number.

143857-75-4Relevant academic research and scientific papers

Synthesis, NMR Spectra, and Photoelectron Spectra of Cyclic Ketene N,X-Acetals (2-Alkylidene-N-heterocycles)

Quast, Helmut,Ach, Manfred,Kindermann, Markus K.,Rademacher, Paul,Schindler, Michael

, p. 503 - 516 (2007/10/02)

Deprotonation by sodium hydride of the N-methyl-2-alkylazolium salts 10c, 14-16, and 18 and of the perimidinium salt 20 as well affords the corresponding ketene N,X-acetals 1c, 3-5, 7 and 8 as air-sensitive distillable oils or low-melting crystals.The α-c

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