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3,4-Dimethoxy-3-cyclobutene-1,2-dione
[CAS# 5222-73-1]

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Identification
Classification Chemical reagent >> Organic reagent >> Olefins (cyclic and non-cyclic)
Name 3,4-Dimethoxy-3-cyclobutene-1,2-dione
Synonyms Dimethyl squarate
Molecular Structure CAS # 5222-73-1, 3,4-Dimethoxy-3-cyclobutene-1,2-dione, Dimethyl squarate
Molecular Formula C6H6O4
Molecular Weight 142.11
CAS Registry Number 5222-73-1
EC Number 627-380-6
Properties
Melting point 54-57 ºC
Safety Data
Risk Codes R42/43    Details
Safety Description S22;S24/25;S26;S36/37/39    Details
Hazard Classification
up    Details
HazardClassCategory CodeHazard Statement
Respiratory sensitizationResp. Sens.1H334
Skin sensitizationSkin Sens.1H317
Skin irritationSkin Irrit.2H315
Specific target organ toxicity - single exposureSTOT SE3H335
Eye irritationEye Irrit.2AH319
Eye irritationEye Irrit.2H319
SDS Available
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