| Melting point | 131-133 °C (lit.) |
| alpha | [α]D20 -0.5～+0.5° (c=5, H2O) |
| Boiling point | 167.16°C (rough estimate) |
| density | 1.609 |
| vapor density | 4.6 (vs air) |
| vapor pressure | <0.1 mm Hg ( 20 °C) |
| refractive index | 1.3920 (estimate) |
| Fp | 203 °C |
| storage temp. | 2-8°C |
| solubility | methanol: 0.1 g/mL, clear, colorless |
| form | neat |
| pka | 3.4(at 25℃) |
| color | White to Almost white |
| PH | 3.33(1 mM solution);2.74(10 mM solution);2.21(100 mM solution); |
| optical activity | [α]/D 0.10 to +0.10° |
| Water Solubility | 558 g/L (20 ºC) |
| Merck | 14,5707 |
| BRN | 1723539 |
| LogP | -6.14 at 20℃ |
| CAS DataBase Reference | 6915-15-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Hydroxybutanedioic acid(6915-15-7) |
| EPA Substance Registry System | Malic acid (6915-15-7) |
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