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328146

Sigma-Aldrich

Manganese(II) chloride

beads, 98%

Synonym(s):

Manganese dichloride, Sacchite

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About This Item

Linear Formula:
MnCl2
CAS Number:
Molecular Weight:
125.84
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

form

beads

reaction suitability

core: manganese
reagent type: catalyst

mp

652 °C (lit.)

density

2.98 g/mL at 25 °C (lit.)

SMILES string

Cl[Mn]Cl

InChI

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

InChI key

GLFNIEUTAYBVOC-UHFFFAOYSA-L

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Application

A novel high-spin hexanuclear Mn(III) cluster, [NaMn6(OMe)12(dbm)6]+, was synthesized via MnCl2 oxidation with simultaneous NaOMe promoted aggregation. This cluster has an unprecedented cyclic structure and 24 unpaired electrons in its ground state. Also used in the formation of an active Mn(0) speciesuseful for radical cyclization reactions.
Starting material for preparation of organomanganese chloride reagents; catalyst for reduction of vinyl and aryl halides, stereoselective coupling of vinyl iodides, and alkylation of enol triflates; also used for Mn-Cu-catalyzed conjugate addition of RMgX to enones and for Mn-catalyzed acylation of RMgX by acyl chlorides; in combination with NaBH4 is diastereoselective reducing agent; starting material for the preparation of Mn enolates regio- and stereo-selectively.

Signal Word

Danger

Hazard Statements

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)

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’.

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Abbati, G.L. et al.
Inorganic Chemistry, 37, 1430-1430 (1998)
Tang, J. et al.
Tetrahedron, 55, 1893-1893 (1999)
Geoffrey J Topping et al.
Medical physics, 40(4), 042502-042502 (2013-04-06)
Manganese(II) is employed as a contrast agent with magnetic resonance imaging (MRI) for study of neuronal activation in rats and mice. However, at the concentrations required for MRI, Mn may induce pharmacological or toxic effects. Positron emission tomography (PET) imaging
Anne Bertrand et al.
NeuroImage, 64, 693-702 (2012-09-11)
The impairment of axonal transport by overexpression or hyperphosphorylation of tau is well documented for in vitro conditions; however, only a few studies on this phenomenon have been conducted in vivo, using invasive procedures, and with contradictory results. Here we
A G Kanthasamy et al.
Toxicology letters, 214(3), 288-295 (2012-09-22)
The role of normal cellular prion protein (PrP) remains to be fully elucidated; however, the protein is crucial for the infection and progression of prion diseases. Recent evidence indicates that PrP is a metalloprotein since the octapeptide repeat sequences in

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