Belzer UW® Cold Storage Solution does not require filtering before use or refrigerated routine storage.
However, please note that the solution must be cooled to 2° to 6°C (36° to 43°F) prior to use.

Belzer UW® Cold Storage Solution

Ingredientg/Lmmol/L
Hydroxyethyl starch (Pentafraction)50.0NA
Lactobionic acid (as Lactone)35.83105
Potassium dihydrogen phosphate3.425
Magnesium sulfate heptahydrate1.235
Raffinose pentahydrate17.8330
Adenosine1.345
Allopurinol0.1361
Total Glutathione0.9223
Potassium hydroxide*5.61100
Sodium hydroxide/Hydrochloric acid (adjust to pH 7.4)
Water for injection q.s.

ViaSpan®

Ingredientg/Lmmol/L
Hydroxyethyl starch (Pentafraction)50.0NA
Lactobionic acid (as Lactone)35.83105
Potassium dihydrogen phosphate3.425
Magnesium sulfate heptahydrate1.235
Raffinose pentahydrate17.8330
Adenosine1.345
Allopurinol0.1361
Total Glutathione0.9223
Potassium hydroxide 56%*14.5100
Sodium hydroxide/Hydrochloric acid (adjust to pH 7.4)
Water for injection q.s.

* Please note that while the g/L of potassium hydroxide for ViaSpan vs Belzer UW is different, the mmol/L is the same. This is due to the difference in concentration of potassium hydroxide used.