Peptide Dosing Calculator Guide | Reconstitution Volume Tables | QSC

QSC · RESEARCH CATALOG

Peptide Reconstitution & Dosing Calculator Guide
Volume Calculations · mg to mcg · Syringe Units · Concentration Tables

Research peptides are supplied as lyophilized powder that must be reconstituted before use. Calculating the correct diluent volume, working concentrations, and draw volumes is essential for accurate research protocols. This guide provides all formulas, example calculations, and reference tables.

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≥99%
HPLC Purity
Janoshik
Independent COA
80+
Compounds
verify.janoshik.com
Verify Any COA

Core Formula

RECONSTITUTION VOLUME FORMULA
Volume (mL) = Peptide (mg) ÷ Target Concentration (mg/mL)

Reconstitution Volume Calculator Table

Vial Size Target Concentration Add BAC Water Result
2mg 1mg/mL 2.0mL 2mg/2mL = 1mg per mL = 1000mcg/mL
2mg 2mg/mL 1.0mL 2mg/1mL = 2mg per mL = 2000mcg/mL
5mg 1mg/mL 5.0mL 5mg/5mL = 1mg per mL = 1000mcg/mL
5mg 2mg/mL 2.5mL 5mg/2.5mL = 2mg per mL = 2000mcg/mL
5mg 5mg/mL 1.0mL 5mg/1mL = 5mg per mL = 5000mcg/mL
10mg 1mg/mL 10.0mL 10mg/10mL = 1mg per mL = 1000mcg/mL
10mg 2mg/mL 5.0mL 10mg/5mL = 2mg per mL = 2000mcg/mL

Draw Volume (Insulin Syringe) Calculator

A standard U-100 insulin syringe: 1mL = 100 units. Use this table to convert mcg doses to syringe units.

Reconstituted Concentration Research Dose Draw Volume (mL) Syringe Units (U-100)
1mg/mL (1000mcg/mL) 100mcg 0.1mL 10 units
1mg/mL (1000mcg/mL) 200mcg 0.2mL 20 units
1mg/mL (1000mcg/mL) 300mcg 0.3mL 30 units
1mg/mL (1000mcg/mL) 500mcg 0.5mL 50 units
2mg/mL (2000mcg/mL) 100mcg 0.05mL 5 units
2mg/mL (2000mcg/mL) 200mcg 0.1mL 10 units
2mg/mL (2000mcg/mL) 500mcg 0.25mL 25 units

Molar Concentration (nmol/mL) — For Research Requiring Precise Molarity

For research requiring nanomolar or micromolar concentrations:

nmol/mL = (mg/mL × 1,000,000) ÷ Molecular Weight (g/mol)

Example: BPC-157 (MW 1,419.5 g/mol) at 1mg/mL:
nmol/mL = (1 × 1,000,000) ÷ 1,419.5 = 704.5 nmol/mL

Common Research Peptide Molecular Weights

Compound Molecular Weight (g/mol) Notes
BPC-157 1,419.5 Stable gastric pentadecapeptide
TB-500 (Thymosin Beta-4 fragment) 4,963.6 43-AA actin-sequestering
Ipamorelin 711.9 Pentapeptide GHS-R1a agonist
CJC-1295 (no DAC) 3,367.9 GHRH 1-29 analogue
Epitalon 390.4 Ala-Glu-Asp-Gly tetrapeptide
Semaglutide 4,113.6 GLP-1R monoagonist (acylated)
Tirzepatide 4,813.5 GLP-1R/GIPR dual agonist
GHK-Cu 340.4 Copper tripeptide
PT-141 1,025.2 Cyclic MC4R agonist
SS-31 640.8 D-Arg-Dmt-Lys-Phe-NH2 tetrapeptide
Thymosin Alpha-1 3,108.4 28-AA thymic immunomodulator
MOTS-c 2,174.5 16-AA mitochondria-derived peptide

Frequently Asked Questions

How do I calculate peptide reconstitution volume?
Volume (mL) = Peptide (mg) ÷ Target concentration (mg/mL). Example: 5mg vial at 1mg/mL: add 5mL BAC water. For 2mg/mL: add 2.5mL.
How do I convert mcg to syringe units?
With a U-100 insulin syringe (1mL = 100 units): units = mL × 100. For a 1mg/mL solution: 100mcg = 0.1mL = 10 units. 200mcg = 0.2mL = 20 units.
Where do I find a peptide’s molecular weight?
Molecular weight is listed on the QSC product page and Janoshik COA. Common values: BPC-157 = 1,419.5 g/mol; Semaglutide = 4,113.6 g/mol; Ipamorelin = 711.9 g/mol.

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≥99% HPLC · Janoshik COA · MW listed on every product page and COA

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Research Use Only: All QSC products sold strictly for in vitro laboratory research. Not for human or veterinary use.
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