Laboratory calculator
Oxytocin Reconstitution Calculator (2 mg vial)
Worked example
With 2 mg of Oxytocin in 2 mL, the concentration is 2 / 2 = 1 mg/mL. A 250 mcg example amount (0.25 mg) needs 0.25 / 1 = 0.25 mL, or 25 units on a U-100 syringe, and 2,000 mcg divided by 250 mcg gives 8 aliquots per vial.
Reconstitution calculator
Sizes in the Pepcore catalogue2 mg
- Concentration
- 1 mg/mL
- Volume to draw
- 0.25 mL
- Units on a U-100 syringe
- 25 units
- Draws per vial
- 8
How it works
- Concentration = vial mass / water volume: 2 mg / 2 mL = 1 mg/mL.
- Aliquot volume = target amount / concentration: 0.25 mg / 1 mg/mL = 0.25 mL.
- Units on a U-100 syringe = mL x 100 = 25.
- Aliquots per vial = vial mass in mcg / target amount = 2,000 / 250.
Frequently asked questions
How much water does a 2 mg vial of Oxytocin need for 1 mg/mL?
Concentration is vial mass divided by water volume: 2 mg / 2 mL = 1 mg/mL. Change the water volume in the calculator to see how the concentration and the syringe reading move together.
How many units on a U-100 syringe is a 250 mcg example amount of Oxytocin?
At 1 mg/mL a 250 mcg example amount is 0.25 mL, which is 25 units because 1 unit on a U-100 syringe equals 0.01 mL.
How many 250 mcg aliquots are in a 2 mg vial of Oxytocin?
2 mg is 2,000 mcg, and 2,000 mcg divided by 250 mcg gives 8 aliquots, before allowing for volume lost to priming and syringe dead space.
Available from Pepcore
Supplied as research material for laboratory use only.
- Oxytocin Acetate Research Material - 2mg 2 mg$44.99Shop at PepcoreCoupon code
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