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3,4-Dihydroxy-3-cyclobutene-1,2-dione

**** Identification ****
Name: 3,4-Dihydroxy-3-cyclobutene-1,2-dione
Synonyms: 3,4-Dihydroxycyclobut-3-ene-1,2-dione; Squaric acid
Molecular Structure: chemoffer CAS #: 2892-51-5
Molecular Formula: C4H2O4
Molecular Weight: 114.06
CAS Number: 2892-51-5
EINECS: 220-761-4
**** Properties ****
Melting point: 293°C
Flash point: 190°C
Water solubility: 20 g/L (30°C)
**** Safety Data ****
Hazard Symbols: symbolXi Details
Risk Codes: R36/37/38 Details
Safety Description: S26;S37/39 Details
Transport Information: UN 3261

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