ut it reacts much more slowly. The

ut it reacts much more slowly. The bulk chemical should be stored desiccated at −20°C. Warm the bottle to room temperature before opening to prevent condensation occurring that will cause decomposition of the reagent over time. A concentrated solution of EDC in water may be prepared to facilitate the addition of a small molar amount to a reaction, but the stock solution should be dissolved rapidly and used immediately to prevent extensive loss of activity.