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Synonym: Ethanedioyl dichloride
CAS Number: 79-37-8
Linear Formula: ClCOCOCl
Molecular Weight: 126.93
Beilstein Registry Number: 1361988
EC Number: 201-200-2
MDL number: MFCD00000704
PubChem Substance ID: 24853204![]()
| Related Categories | Others, Oxidation, Synthetic Reagents |
| grade | ReagentPlus® |
| vapor density | 4.4 (vs air) |
| vapor pressure | 150 mmHg ( 20 °C) |
| assay | ≥99% |
| total impurities | <10 ppb Heavy metals |
| refractive index | n |
| bp | 62-65 °C(lit.) |
| mp | −10-−8 °C(lit.) |
| density | 1.5 g/mL at 20 °C(lit.) |
Suitable for the synthesis of acid chlorides used to produce liquid crystals.
Reactant involved in:
• Synthesis of N-heterocyclic ynones and ynediones, used to activate carboxylic acids1
• Chlorination and halogenation2
• Three-component [3+2] cycloadditions3
• Reactions with organostannanes4
• Synthesis of cyclopentenones5
• Carbonylations, used as a carbonyl synthon6
5, 25, 100 g in ampule
ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC
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| FT-IR Raman | ![]() |
| Structure Search |
| Pressure-Temperature Nomograph |
| Similar Products |
| Symbol | ![]() GHS05, GHS06 |
| Signal word | Danger |
| Hazard statements | H314-H331-H335 |
| Precautionary statements | P261-P280-P305 + P351 + P338-P310 |
| Supplemental Hazard Statements | Contact with water liberates toxic gas., Reacts violently with water. |
| Personal Protective Equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US) |
| Hazard Codes | C |
| Risk Statements | 14-23-29-34 |
| Safety Statements | 26-36/37/39-43-45 |
| RIDADR | UN 2922 8/PG 1 |
| WGK Germany | 2 |
1. C. Boersch, et al., Angew. Chem. Int. Ed. Engl. 50, 10448-10452, (2011)
2. R. M. Denton, et al., Org. Lett. 12, 4678-4681, (2010)
3. Y. L. Zhao, et al., J. Org. Chem. 7, 5622-5625, (2009)
4. T. Kashiwabara and M. Tanaka, J. Org. Chem. 74, 3958-3961, (2009)
5. C. Chen, et al., Tetrahedron Lett. 50, 5434-5436, (2009)
6. M. L. N. Rao, et al., Tetrahedron Lett. 51, 4975-4980, (2010)
Merck 14,6914
Beil. 2,IV,1853
Fieser 1,767 / Fieser 2,301 / Fieser 3,216 / Fieser 4,361 / Fieser 5,481 / Fieser 6,424 / Fieser 7,257 / Fieser 8,366 / Fieser 11,379 / Fieser 17,241
Aldrich MSDS 1, 1414:C / Corp MSDS 1 (2), 2662:D / FT-IR 2 (1), 1245:A / FT-IR 1 (1), 739:C / IR-Spectra (2), 381:H / IR-Spectra (3), 430:B / RegBook 1 (1), 867:D / Sax 6, 2099 / Sigma FT-IR 1 (2), 814:B / Structure Index 1, 133:B:1
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