Kalkulator rozpuszczania peptydów

How to use the peptide calculator

1. Pick your syringe. Insulin syringes are graduated in units, not millilitres. A U-100 1 ml syringe holds 100 units, so one unit equals 0.01 ml.
2. Enter the peptide amount. This is the total mass of lyophilised powder in the vial, printed on the label — for example 5 mg or 10 mg.
3. Enter the bacteriostatic water volume. The volume you reconstitute with sets the concentration. Less water gives a higher concentration and a smaller draw; more water gives a lower concentration and a larger, easier-to-measure draw.
4. Podaj ilość docelową. Kalkulator przelicza ją na jednostki strzykawki i pokazuje stężenie w mg/ml oraz liczbę alikwotów tej wielkości w fiolce.

The reconstitution formula

Every reconstitution calculation reduces to two steps. First the concentration, then the volume:

• concentration (mg/ml) = peptide amount (mg) ÷ bacteriostatic water (ml)
• objętość do pobrania (ml) = ilość docelowa (mg) ÷ stężenie (mg/ml)
• syringe units = volume to draw (ml) × 100

Przykład: fiolka 5 mg rekonstytuowana 2 ml wody bakteriostatycznej daje 2,5 mg/ml. Ilość docelowa 250 mcg (0,25 mg) to 0,25 ÷ 2,5 = 0,1 ml, czyli 10 jednostek na strzykawce insulinowej U-100.

Handling and storage notes

Add the bacteriostatic water slowly down the inside wall of the vial rather than directly onto the powder, and swirl gently instead of shaking — peptides are fragile and vigorous agitation can degrade them. Store lyophilised vials at room temperature away from light; refrigerate reconstituted solutions at 2–8°C and use them within about 30 days. Refer to the batch Certificate of Analysis for compound-specific stability data.

This calculator is provided as a laboratory reference tool. All products and calculations are for in-vitro research use only and are not intended for human or animal consumption.

Browse our research peptide catalog, or read the FAQ for storage, purity and Certificate of Analysis details.