1.00382
DL-Malic acid
for biochemistry
别名:
DL-Malic acid, DL-Hydroxysuccinic acid, Hydroxybutanedioic acid
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关于此项目
经验公式（希尔记法）:
C4H6O5
化学文摘社编号:
分子量:
134.09
UNSPSC Code:
12352106
EC Index Number:
230-022-8
NACRES:
NA.21
MDL number:
产品名称
DL-Malic acid, for biochemistry
SMILES string
[O-]C(=O)C(O)CC(=O)[O-].[H+].[H+]
InChI
1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
InChI key
BJEPYKJPYRNKOW-UHFFFAOYSA-N
assay
≥99.5% (acidimetric)
form
solid
autoignition temp.
349 °C
potency
>3200 mg/kg LD50, oral (Rat)
pH
2.3 (20 °C, 10 g/L in H2O)
mp
128-132 °C
transition temp
flash point 203 °C
density
1.60 g/cm3 at 20 °C
bulk density
800 kg/m3
storage temp.
2-30°C
Quality Level
Analysis Note
Assay (acidimetric): ≥ 99.5 %
Identity (IR-spectrum): passes test
Melting point: 128 - 132 °C
Optical rotation (20 %; water): -0.1 - 0.1 °
Fe (Iron): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Related substances (HPLC) (Impurity A (fumaric acid)): ≤ 1.0 %
Related substances (HPLC) (Impurity B (maleic acid)): ≤ 0.05 %
Related substances (HPLC) (any other impurity): ≤ 0.1 %
Related substances (HPLC) (Sum of all other impurities): ≤ 0.5 %
Identity (IR-spectrum): passes test
Melting point: 128 - 132 °C
Optical rotation (20 %; water): -0.1 - 0.1 °
Fe (Iron): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Related substances (HPLC) (Impurity A (fumaric acid)): ≤ 1.0 %
Related substances (HPLC) (Impurity B (maleic acid)): ≤ 0.05 %
Related substances (HPLC) (any other impurity): ≤ 0.1 %
Related substances (HPLC) (Sum of all other impurities): ≤ 0.5 %
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
397.4 °F
flash_point_c
203 °C
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