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381004

Sigma-Aldrich

Bis(cyclopentadienyl)chromium(II)

95%

Synonym(s):

Chromocene, Di(cyclopentadienyl)chromium(II)

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About This Item

Linear Formula:
Cr(C5H5)2
CAS Number:
Molecular Weight:
182.18
EC Number:
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

95%

form

solid

reaction suitability

core: chromium
reagent type: catalyst

mp

168-170 °C (lit.)

SMILES string

[Cr].[CH]1[CH][CH][CH][CH]1.[CH]2[CH][CH][CH][CH]2

InChI

1S/2C5H5.Cr/c2*1-2-4-5-3-1;/h2*1-5H;

InChI key

OXPNGPODCRFNTM-UHFFFAOYSA-N

Application

Catalyst for:
  • Stereoselective pinacol-type cross-coupling reactions
  • Thermal homo-polymerization and co-polymerization reactions
  • Nozaki-Hiyama-Kishi reactions (additions of organic halides to aldehydes)

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1A - Skin Sens. 1

Storage Class Code

8A - Combustible corrosive hazardous materials

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’.

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