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Products > Optimization Screens > StockOptions Buffer Kits > StockOptions Citric Acid Buffer Kit
StockOptions Citric Acid Buffer Kit
Applications
- Focused, titrated buffer stocks for crystal screening, optimization & production
Features
- pH range 2.2 – 6.5 (44 unique reagents)
- 0.1 pH unit increments for fine tuning pH
- pKa1 = 3.1 pKa2 = 4.8 pKa3 = 6.4
- 1.0 M concentrated stocks
Description
StockOptions Citric Acid buffer kit is a preformulated, sterile filtered set of titrated buffer stocks. The StockOptions Citric Acid buffer stock reagents are supplied as 1.0 M stock solutions in 10 ml volumes. Each StockOptions Citric Acid buffer reagent is carefully titrated using Sodium hydroxide. StockOptions Citric Acid is comprised of 44 unique reagents covering the pH range of 2.2 to 6.5 in 0.1 pH unit increments. Individual reagents are available.
Citric acid
Synonym:Citric acid anhydrous
C6H8O7
HOC(COOH)(CH2COOH)2
Mr 192.13
CAS Number [77-92-9]
EC Number 201-069-1
Beilstein Registry Number 782061
Merck 14,2326
RTECS GE7350000
MDL Number MFCD00011669
PubChem Substance ID 24856611
Purity >99.5%
Useful pH range of citric acid as a buffer 2.2 – 6.5
pKa1 = 3.1 pKa2 = 4.8 pKa3 = 6.4
Assay
Al <0.0005%
As <0.00001%
Ba <0.0005%
Bi <0.0005%
Ca <0.001%
Cd <0.0005%
Cl <0.0005%
Co <0.0005%
Cr <0.0005%
Cu <0.0005%
Fe <0.0005%
K <0.005%
Li <0.0005%
Mg <0.0005%
Mn <0.0005%
Mo <0.0005%
Na <0.005%
Ni <0.0005%
Oxalate (C2O4) <0.05%
Pb <0.0005%
PO4 <0.0005%
SO4 <0.002%
Sr <0.0005%
Tartrate (C4H4O6) <0.2%
Zn <0.0005%
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CAT NO
HR2-104
NAME
DESCRIPTION
pH 2.2 to 6.5 in 0.1 pH unit increments
PRICE
$265.00
cart quote
Support Material(s)
HR2-104 StockOptions Citric Acid Documents
HR2-104 StockOptions Citric Acid SDS Related Item(S)
- Citric acid Buffer
- Individual StockOptions Citric Acid Reagents
References
1. Microscale Fluorescent Thermal Stability Assay for Membrane Proteins Structure, Volume 16, Issue 3, 11 March 2008, Pages 351-359 Alexander I. Alexandrov, Mauro Mileni, Ellen Y.T. Chien, Michael A. Hanson, Raymond C. Stevens
2. Increasing the size of microcrystals by fine sampling of pH limits. A. McPherson. J. Appl. Cryst. (1995). 28, 362-365.
Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).
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