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1-Methylpyridinium, also known as 1-methyl-1-azoniabicyclo[2.2.2]octane, is a cationic organic compound with the chemical formula C6H8N. It is a derivative of pyridine, where one hydrogen atom is replaced by a methyl group (-CH3). 1-methylpyridinium is a white crystalline solid that is soluble in water and polar organic solvents. 1-Methylpyridinium is commonly used as a phase-transfer catalyst in organic synthesis, facilitating the transfer of reactants between aqueous and organic phases. It is also employed in the preparation of various pyridine derivatives and as a ligand in coordination chemistry. Due to its cationic nature, 1-methylpyridinium can form complexes with anions, which are useful in various chemical reactions and applications.

694-56-4

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694-56-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 694-56-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 694-56:
(5*6)+(4*9)+(3*4)+(2*5)+(1*6)=94
94 % 10 = 4
So 694-56-4 is a valid CAS Registry Number.
InChI:InChI=1/C6H8N/c1-7-5-3-2-4-6-7/h2-6H,1H3/q+1

694-56-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name N-methylpyridinium

1.2 Other means of identification

Product number -
Other names Pyridinium,1-methyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:694-56-4 SDS

694-56-4Downstream Products

694-56-4Relevant academic research and scientific papers

Deprotonation of 1-(carbethoxyalkyl)pyridinium halides with strong N-bases

Dega-Szafran, Zofia,Schroeder, Grzegorz,Szafran, Miroslaw

, p. 39 - 46 (2007/10/03)

The rate constants were measured for deprotonation of 1-(carbethoxymethyl)pyridinium chloride and 1-(2-carbethoxyethyl)pyridinium bromide with strong bases (DBU, MTBD, TBD and P2-Et) in acetonitrile. The UV spectra and semiempirical calculations are consistent with an ylide structure of the deprotonated species. The ylides obtained slowly decompose, and the reaction products were identified by 1H NMR spectroscopy; 1-(carbethoxymethyl)pyridinium chloride gives N-methylpyridinium cation and ethanol and 1-(2-carbethoxyethyl)pyridinium bromide converts to pyridine and ethyl acrylate. Copyright

NOUVELLE SYNTHESE SIMPLE DE NUCLEOSIDE PHOSPHOROTHIOLATE

Asseline, U.,Thuong, N. T.

, p. 847 - 850 (2007/10/02)

The O,S-dimethylphosphorochloridate 10 reacts with 5'-O-monomethoxytritylthymidine 11 in pyridine giving nucleoside-3'-thiolophosphodiester 13 in high yields ; in acetonitrile and in the presence of 1-methylimidazole, this reaction leads to the nucleoside-3'-phosphotriester 14 without formation of diester 13.From the latter, the Tp and TpT have been prepared.

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