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M3634

Sigma-Aldrich

Manganese(II) chloride tetrahydrate

ReagentPlus®, ≥99%

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About This Item

Linear Formula:
MnCl2 · 4H2O
CAS Number:
13446-34-9
Molecular Weight:
197.91
EC Number:
231-869-6
MDL number:
MFCD00149792
UNSPSC Code:
12352302
PubChem Substance ID:
329817977
NACRES:
NA.21

product line

ReagentPlus®

Assay

≥99%

form

powder

pH

3.5-6 (25 °C, 50 g/L)

mp

58 °C (lit.)

SMILES string

Cl[Mn]Cl.[H]O[H].[H]O[H].[H]O[H].[H]O[H]

InChI

1S/2ClH.Mn.4H2O/h2*1H;;4*1H2/q;;+2;;;;/p-2

InChI key

CNFDGXZLMLFIJV-UHFFFAOYSA-L

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General description

Manganese(II) chloride tetrahydrate is the tetrahydrate form of manganese(II) chloride. It is used in the preparation of manganese-based hybrid compounds.

Application

Manganese(II) chloride tetrahydrate can be used:      
  • As a promoter to synthesize dihydropyrimidin-2(1H)-ones by the condensation of aldehyde, β-dicarbonyl compounds, and urea under microwave conditions.      
  • As a catalyst to synthesize dihydro-2-oxypyrrole derivatives via one-pot four-component domino condensation of dialkyl acetylenedicarboxylate, formaldehyde, and amines.     
  • To synthesize active manganese oxide with potential application as an oxidant in organic synthesis.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Statements

H301,H318,H373

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - STOT RE 2

Target Organs

Brain

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

Flash Point(F)

does not flash

Flash Point(C)

does not flash

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Lisha Luo et al.
NMR in biomedicine, 25(12), 1360-1368 (2012-05-11)
The aim of this study was to provide data on the dose dependence of manganese-enhanced MRI (MEMRI) in the visual pathway of experimental rats and to study the toxicity of MnCl₂ to the retina. Sprague-Dawley rats were intravitreally injected with
Seong-Uk Jin et al.
Magnetic resonance imaging, 31(7), 1143-1149 (2013-05-11)
The cochlear plays a vital role in the sense and sensitivity of hearing; however, there is currently a lack of knowledge regarding the relationships between mechanical transduction of sound at different intensities and frequencies in the cochlear and the neurochemical
Oliviero L Gobbo et al.
Contrast media & molecular imaging, 7(6), 542-546 (2012-09-20)
Lung parenchyma remains one of the most difficult tissues to be imaged by means of magnetic resonance imaging (MRI). Several MRI techniques are routinely used for lung imaging. However, manganese-enhancement MRI (MEMRI) technique has not been associated with pulmonary MRI.
Asad A Aboud et al.
Neurotoxicology, 33(6), 1443-1449 (2012-10-27)
Manganese (Mn) is an environmental risk factor for Parkinson's disease (PD). Recessive inheritance of PARK2 mutations is strongly associated with early onset PD (EOPD). It is widely assumed that the influence of PD environmental risk factors may be enhanced by
M R Sepúlveda et al.
Contrast media & molecular imaging, 7(4), 426-434 (2012-06-01)
Manganese is a vital element and cofactor of many key enzymes, but it is toxic at high levels, causing pronounced disturbances in the mammalian brain. Magnetic resonance imaging (MRI) studies using manganese ions as a paramagnetic contrast agent are often
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