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8.18247

Sigma-Aldrich

Copper(II) chloride

for synthesis

Synonym(s):

Copper(II) chloride, Copper dichloride

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About This Item

Empirical Formula (Hill Notation):
Cl2Cu
CAS Number:
Molecular Weight:
134.45
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-210-2
NACRES:
NA.22

Quality Level

form

solid

potency

584 mg/kg LD50, oral (Rat)

pH

3.5 (20 °C, 50 g/L in H2O)

mp

498 °C (decomposes)

solubility

620 g/L

density

3.39 g/cm3 at 20 °C

bulk density

1200 kg/m3

storage temp.

2-30°C

InChI

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

InChI key

ORTQZVOHEJQUHG-UHFFFAOYSA-L

Application

  • Catalytic enhancement in organic synthesis: The study explores the use of Copper(II) chloride as a catalytic agent in the synthesis of 4-sulfonyl-1,2,3-triazoles, highlighting its role in sequential aerobic copper-catalyzed sulfonylation and Dimroth cyclization, providing a robust method for constructing triazole frameworks in medicinal chemistry and material science (Van Hoof et al., 2021).

Analysis Note

Assay (iodometric, calc.on anhydrous substance): ≥ 98.0 %
Loss on drying (250 °C, 2 h): ≤ 5.0 %

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2

Storage Class

8B - Non-combustible, corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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