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DL-Malic acid pH 7.0
Applications
Crystallization grade DL-malic acid for formulating screens or for optimization
Features
Sterile filtered
Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)
Description
DL-Malic acid
Synonyms: (±)-2-Hydroxysuccinic acid or DL-Hydroxybutanedioic acid
HO2CCH2CH(OH)CO2H
C4H6O5
Mr 134.09
CAS Number [6915-15-7]
EC Number 230-022-8
Beilstein Registry Number 1723539
RTECS ON7175000
MDL Number MFCD00064212
PubChem Substance ID 24901221
Purity ≥99.0%
Appearance (Solution): Clear, yellow to light amber color

HR2-761 is titrated to pH 7.0 using NaOH
Measured Conductivity Range: 48.0 - 54.4 mS/cm at 25°C
Measured Refractive Index Range: 1.40572 - 1.40617 at 20°C

pKa1 3.4
pKa2 5.1

As ≤0.0003%
Cd ≤0.0001%
Hg ≤0.0001%
Pb ≤0.001%
CAT NO NAME DESCRIPTION
HR2-761 DL-Malic acid pH 7.0 - 3.0 M solution 200 ml
Price Quantity
$75.00
References
1.A comparison of salts for the crystallization of macromolecules. Alexander McPherson. Protein Science (2001), 10:418–422.
2.Novel homozygous p.E64D mutation in DJ1 in early onset Parkinson disease (PARK7). Olaf Riess et al. Human Mutation, Volume 24, Issue 4, Pages 321 - 329, 2004.
SUPPORT MATERIALS
SDS for HR2-761
Certificates of Analysis
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