Documentation & quality
Every lot, documented.
We supply analytical documentation for the specific lot you receive — not a generic sheet. Identity, purity, and mass confirmation, tied to a batch number, available on request before or after you order.
Purity — HPLC
High-performance liquid chromatography quantifies purity as a percentage of total peak area and flags related impurities.
Identity — Mass spec
Mass spectrometry confirms the measured molecular weight matches the expected mass for the sequence.
Traceability — by lot
Each vial carries a batch number. The COA and supporting data you receive correspond to that exact lot.
What a Certificate of Analysis shows
A COA is the summary record for a batch. For our research peptides it typically reports:
- Product & sequence — compound name and amino-acid sequence
- Batch / lot number — the identifier printed on the vial
- Purity (HPLC) — percentage by peak area, with method conditions
- Identity (MS) — observed vs. theoretical molecular weight
- Appearance & net content — physical form and fill
- Analysis date
What you receive
Documentation supplied for the specific lot you receive. Request it for any lot, before or after ordering.
Certificate of Analysis
The batch record for your lot: product and sequence, lot number, measured purity, identity confirmation, appearance, net content and analysis date.
Issued per lotHPLC chromatogram
The purity trace behind the number on the COA — peak area percentage with the method conditions used, so the result can be interpreted rather than taken on faith.
Purity methodMass spectrum
Identity confirmation: observed molecular weight against the theoretical mass for the stated sequence.
Identity methodLot lookup
Request the COA for a specific lot
Enter the product and lot number from your vial and we'll send its documentation.
CytoTide Research supplies laboratory reagents for research use only — not pharmaceuticals, and not for human or veterinary use. Analytical documentation describes material identity and purity; it is not a claim of safety or efficacy for any use.