Hampton Research offers StockOptions kits for polymers, salts, and buffers. 

StockOptions Features:
• Ready to use sets of sterile filtered stock solutions designed for the crystallization of biological macromolecules.
• Rapid, easy transition from screening to optimization
• Synergistic with Hampton Research screens, kits, & reagents
• Concentrated and ready to dilute

Product Name Product Description Catalog Number  
StockOptions Polymer 23 Unique Polymer Stocks HR2-227 Individual Reagents
StockOptions Salt 49 Unique Salt Stocks HR2-245 Individual Reagents
StockOptions pH 8 Unique Buffers covering pH 2.2 to 11.0 in 0.2 pH unit increments HR2-241 Individual Reagents
StockOptions Citric Acid 1.0 M Stocks pH 2.2 to 6.5 in 0.1 pH unit increments HR2-104 Individual Reagents
StockOptions Sodium Acetate 1.0 M Stocks pH 3.6 to 5.6 in 0.1 pH unit increments HR2-233 Individual Reagents
StockOptions Malic Acid 1.0 M Stocks pH 3.7 to 6.0 in 0.1 pH unit increments HR2-240 Individual Reagents
StockOptions Sodium Citrate 1.0 M Stocks pH 4.2 to 6.5 in 0.1 pH unit increments HR2-235 Individual Reagents
StockOptions Succinic Acid 1.0 M Stocks pH 4.3 to 6.6 in 0.1 pH unit increments HR2-249 Individual Reagents
StockOptions Phosphate 1.0 M Stocks pH 5.0 to 8.2 in 0.2 pH unit increments HR2-251 Individual Reagents
StockOptions Sodium Cacodylate 1.0 M Stocks pH 5.1 to 7.4 in 0.1 pH unit increments HR2-239 Individual Reagents
StockOptions MES 1.0 M Stocks pH 5.2 to 7.1 in 0.1 pH unit increments HR2-243 Individual Reagents
StockOptions Bis-Tris 1.0 M Stocks pH 5.5 to 7.5 in 0.1 pH unit increments HR2-106 Individual Reagents
StockOptions ADA 1.0 M Stocks pH 5.6 to 7.5 in 0.1 pH unit increments HR2-255 Individual Reagents
StockOptions PIPES 1.0 M Stocks pH 6.1 to 7.5 in 0.1 pH unit increments HR2-257 Individual Reagents
StockOptions Imidazole 1.0 M Stocks pH 6.2 to 7.8 in 0.1 pH unit increments HR2-095 Individual Reagents
StockOptions Bis-Tris Propane 1.0 M Stocks pH 6.3 to 9.5 in 0.1 pH unit increments HR2-103 Individual Reagents
StockOptions MOPS 1.0 M Stocks pH 6.5 to 7.9 in 0.1 pH unit increments HR2-252 Individual Reagents
StockOptions HEPES 1.0 M Stocks pH 6.8 to 8.2 in 0.1 pH unit increments HR2-102 Individual Reagents
StockOptions Sodium HEPES 1.0 M Stocks pH 6.8 to 8.2 in 0.1 pH unit increments HR2-231 Individual Reagents
StockOptions Tris 1.0 M Stocks pH 7.0 to 9.0 in 0.1 pH unit increments HR2-100 Individual Reagents
StockOptions Tris Hydrochloride 1.0 M Stocks pH 7.0 to 9.0 in 0.1 pH unit increments HR2-237 Individual Reagents
StockOptions Bicine 1.0 M Stocks pH 7.4 to 9.3 in 0.1 pH unit increments HR2-101 Individual Reagents
StockOptions Tricine 1.0 M Stocks pH 7.4 to 8.8 in 0.1 pH unit increments HR2-253 Individual Reagents
StockOptions AMPD 1.0 M Stocks pH 7.8 to 9.7 in 0.1 pH unit increments HR2-254 Individual Reagents
StockOptions CHES 1.0 M Stocks pH 8.6 to 10.0 in 0.1 pH unit increments HR2-256 Individual Reagents
StockOptions Glycine 1.0 M Stocks pH 8.6 to 10.6 in 0.1 pH unit increments HR2-250 Individual Reagents