Skip to Content
Merck
All Photos(2)

Key Documents

198005

Sigma-Aldrich

2-Chloro-1-methylpyridinium iodide

97%

Synonym(s):

Mukaiyama reagent

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C6H7ClIN
CAS Number:
Molecular Weight:
255.48
Beilstein:
3572320
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

97%

mp

200 °C (dec.) (lit.)

SMILES string

[I-].C[n+]1ccccc1Cl

InChI

1S/C6H7ClN.HI/c1-8-5-3-2-4-6(8)7;/h2-5H,1H3;1H/q+1;/p-1

InChI key

ABFPKTQEQNICFT-UHFFFAOYSA-M

Looking for similar products? Visit Product Comparison Guide

General description

2-Chloro-1-methylpyridinium iodide (Mukaiyama reagent), is a commonly used reagent in organic synthesis for the activation of the hydroxy group of alcohols and carboxylic acids. It is used to synthesize derivatives of esters, lactones, amides, lactams, and ketenes from the corresponding carboxylic acids. It is also used as an efficient coupling reagent in the synthesis of peptides because of its low toxicity, simple reaction conditions, and also less expensive than EDC.

Application

2-Chloro-1-methylpyridinium iodide (CMPI) can be used as:
  • A dehydrating agent for the conversion of various aldoximes to nitriles, and alcohols into alkyl thiocyanates.
  • A cross-linking agent to fabricate biodegradable cross-linked hyaluronic acid film and gelatin membranes for biomedical applications.
  • A condensing agent to synthesize various β-lactams from β-amino acids.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Tetrahedron Asymmetry, 3, 1455-1455 (1992)
Ming Liu et al.
Food chemistry, 242, 338-344 (2017-10-19)
In this study, a strategy based on chemical derivatization coupled with electrospray ionizationtandem quadrupole mass spectrometry (ESI-MS/MS) for rapid and sensitive detection of FFAs in edible oils was developed. A derivative reagent (N,N-diethyl-1,2-ethanediamine, DEEA) was employed to selectively label carboxyl
Jenn-Jong Young et al.
Journal of biomaterials science. Polymer edition, 15(6), 767-780 (2004-07-17)
In order to obtain much slower biodegradable films, which are often required for biomedical applications, we have developed a series of studies on heterogeneous cross-linking of hyaluronic acid (HA) films by using 2-chloro-1-methylpyridinium iodide (CMPI) or 1-ethyl-(3,3-dimethylaminopropyl)carbodiimide (EDC) as cross-linking
Dmitrii V Belykh et al.
Molecules (Basel, Switzerland), 23(7) (2018-07-18)
This article focuses on the antiradical activity of a number of 2,6-diisobornylphenol-porphyrin conjugates with various spacers between the porphyrin and phenolic fragments in the model reaction of ethylbenzene oxidation initiated by azoisobutyric acid dinitrile. The study has shown that the
A convenient method for the construction of β-lactam compounds from β-amino acids using 2-chloro-1-methylpyridinium iodide as condensing reagent
Huang H, et al.
Chemistry Letters (Jpn), 13(8), 1465-1466 (1984)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service