Squaric acid
Preliminary reference disclaimer
This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.
Preliminary safety reference
Available
Supplier-issued SDS
Available by request
COA
Available by RFQ / lot confirmation
Transport classification
Requires shipment review
CAS Number
2892-51-5
Chemical name
Squaric acid
Molecular formula
C4H2O4
Molecular weight
114.06 g/mol
Synonyms
Quadratic acid; Quadratsaeure; 1,2-Diketo-3,4-dihydroxycyclobutene; Dihydroxycyclobutenedione; 3,4-Dihydroxy-3-cyclobutene-1,2-dione; 3-Cyclobutene-1,2-dione, 3,4-dihydroxy-; dihydroxycyclobut-3-ene-1,2-dione; Cyclobutenedione, dihydroxy-; 1,2-Dihydroxycyclobutene-3,4-dione; 1,2-Dihydroxycyclobutenedione; 3,4-Dihydroxy-cyclobutene-1,2-dione; CYCLOBUTENE-1,2-DIONE, 3,4-DIHYDROXY-
InChIKey
PWEBUXCTKOWPCW-UHFFFAOYSA-N
PubChem CID
17913
Signal word
Warning
Catalog reference cue; confirm supplier documentation before use.
Hazard statements
H315, H317, H319, H335
Catalog reference cue; confirm supplier documentation before use.
Appearance
Solid; [Merck Index] Gray crystalline solid; [Sigma-Aldrich MSDS]
Catalog reference value; verify against supplier SDS before use.
XLogP
-0.7
Catalog reference value; verify against supplier SDS before use.
Shipment review
Shipment details require review before fulfillment.
Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.