Handling
Peptide Reconstitution Math for Laboratory Protocols
2026-05-04 · 5 min read
Reconstitution is arithmetic, but it is the arithmetic most often done wrong when a vial label lists total mass rather than concentration.
The base calculation
Concentration equals vial mass divided by diluent volume. A 10 mg vial reconstituted with 2 mL of bacteriostatic water gives 5 mg/mL; the same vial with 1 mL gives 10 mg/mL.
Aliquot before freezing
Split reconstituted material into single-use aliquots so a protocol never depends on repeated freeze-thaw of one tube.
Record it
Log the lot number, diluent, volume, and date on the aliquot. That record is what lets a result be traced back to a COA months later.
Ordering, minimums, and pricing
Every SKU is priced per vial and sold in sealed ten-vial kits with a one-kit minimum. Volume tiers: 1 kit at list, 2 kits at 5% off, 3 kits at 7% off, 5 kits at 12% off, and 10 kits at 20% off. Domestic orders received by 2PM PT dispatch the same business day, and freight is free above $2,500.
All compounds are sold as chemical reagents for laboratory research use only — not for human or veterinary use.
Frequently asked
- What is the minimum order?
- One ten-vial kit of any in-stock SKU. Mix compounds freely to reach a volume tier.
- Do orders include a certificate of analysis?
- Yes — lot-specific, with third-party HPLC purity and mass-spec identity.