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2-Hydroxybutanedioic Acid
[CAS 78644-42-5]

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Identification
Name 2-Hydroxybutanedioic Acid
Synonyms 2-Hydroxysuccinic Acid; .+-.-Malic Acid; Butanedioic Acid, Hydroxy-, (.+-.)-
Molecular Structure CAS#: 78644-42-5, 2-Hydroxybutanedioic Acid
Molecular Formula C4H6O5
Molecular Weight 134.09
CAS Registry Number 78644-42-5
SMILES C(C(C(O)=O)O)C(O)=O
InChI 1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
InChIKey BJEPYKJPYRNKOW-UHFFFAOYSA-N
Properties
Density 1.609 (Expl.)
1.6±0.1g/cm3 (Cal.)
Melting point 130°C (Expl.)
Boiling point 150°C (Expl.)
306.4±27.0°C at 760 mmHg (Cal.)
Flash point 153.4±20.2°C (Cal.)
203°C (Expl.)
solubility Soluble in acetone, dioxane, water, methanol and ethanol. Insoluble in benzene.
Safety Data
Safety Code S26;S36/37/39;S60  Details
Risk Code R22;R37/38;R41  Details
Hazard Symbol symbol  X  Details
Safety Description WARNING: Irritates lungs, eyes, skin
Safety glasses, adequate ventilation.
WARNING: Irritates skin and eyes, harmful if swallowed
References
(1) Stefanie Wienkoop, Julia WeißContributed equally., Patrick May, Stefan Kempa, Susann Irgang, Luis Recuenco-Munoz, Matthias Pietzke, Thorsten Schwemmer, Jens Rupprecht, Volker Egelhofer and Wolfram Weckwerth. Targeted proteomics for Chlamydomonas reinhardtii combined with rapid subcellular protein fractionation, metabolomics and metabolic flux analyses, Mol. Biosyst., 2010, 6, 1018.
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