If a supplied lot fails agreed specifications, we’ll replace it at no cost or refund its purchase price in full.
Quality test failed? Free replacement or full refund.
Off-spec? Free replacement or full refund.
Reading a Peptide HPLC Trace — A 5-Minute Field Guide for Bench Scientists. Read our briefing →
Reading a peptide HPLC trace — a field guide. Read →
On reading HPLC traces. Read →
For Academic Laboratories
A standard qualified for a method-development or in-vivo workflow gets cited in the methods section, referenced in the next grant, and re-ordered across the life of the project. Lyochem supplies sequence-verified, lot-traceable material with batch records for research review, academic pricing, and documentation for IACUC and journal review requirements.
The situation
The same reference material may be used throughout a multi-year study. Keep the identity and lot records available for future publications, grant applications, and reviewer questions.
Review the analytical records alongside price and supply requirements. Ask Lyochem sales for the COA matched to the offered or supplied lot; every lot's COA reports RP-HPLC purity and ESI-MS identity. Raw chromatograms, mass spectra, or tandem-MS evidence are included when they form part of the agreed scope.
Regions served: Global · concentrated in USA · EU · UK · Japan · Australia
How procurement runs
Tell us the sequence or catalogue molecule, the scale you actually consume, and whether the work is in-vitro or in-vivo. For in-vivo we flag the microbial-limits add-on up front; endotoxin is already on every batch COA.
Request the sample data packet — a representative COA, RP-HPLC trace, and ESI-MS identity sheet — so your PI and analytical core can vet the documentation depth before a PO is raised.
A lot-specific COA is available from sales and keyed to the vial. LC-MS/MS or other expanded evidence is included only when agreed for the lot before quotation.
The catalogue entry stays put, so the next order maps to the same SOP reference and the same documentation structure across the life of the project.
The release packet
The analytical packet — not the price — is what an audit, a reviewer, or a downstream SOP actually checks. Request the sample data packet to vet the depth before a PO.
Per-lot Certificate of Analysis keyed to lot number and re-test date
RP-HPLC chromatogram with peak integration
ESI-MS identity confirmation against theoretical mass
LC-MS/MS sequence verification on longer sequences (on request elsewhere)
Water content (Karl Fischer) and counter-ion identification
Bacterial endotoxin on every batch COA; USP <61>/<62> microbial limits on request for in-vivo work
Academic / non-profit pricing reviewed per project
Curated catalogue
15-mer
Body Protection Compound 15-mer
Also in nasal sprayAlso in capsules
43-mer
Full-length Thymosin β4 (43 residues)
Also in nasal spray
GLP-1 receptor agonist · 31-mer metabolic research peptide
Also in nasal spray
GIP / GLP-1 dual receptor agonist · 39-mer metabolic research peptide
Also in nasal spray
16-mer
Mitochondrial-derived peptide
Also in nasal spray
Cathelicidin antimicrobial peptide
Also in nasal spray
Before a first order
Yes — academic, government-laboratory, and non-profit pricing is reviewed per project at quote stage. Because reference-standard procurement tends to be recurring rather than one-off, the pricing usually reflects your re-order cadence across the project rather than a single-PO discount. Share the molecule and your expected consumption when you request the data packet.
Every lot comes with its batch COA covering identity and purity (RP-HPLC and ESI-MS), bacterial endotoxin and fill amount; water content and counter-ion are available on request. For in-vivo work we add microbial limits (USP <61>/<62>) on the specific lot on request — an add-on rather than a default because cell-culture-only workflows generally do not need it. Flag the in-vivo route when you scope the order so the right tests are run on the lot you receive.
Yes — the catalogue identity is held stable so re-orders map to the same SOP reference. Request the COA for each offered or supplied lot to document the material used and the analytical work actually recorded.
Mass spectrometry confirms the molecular weight to within a fraction of a Dalton, but two different sequences can share a mass. For that reason LC-MS/MS sequence verification — which reads the residue order directly — is included on the longer peptide classes and available on request elsewhere. Our lab note “Mass spec alone is not sequence verification” walks through the distinction.
Lab notes for this workflow
Other research teams we serve
Biotech R&D Groups
Preclinical biotech and pharma discovery teams sourcing characterized peptides for receptor-pharmacology, screening, and method-development campaigns.
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Contract Research Organisations
CROs running preclinical and translational studies for sponsors who need traceable reference material reconciled across multi-site campaigns.
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Core Facilities & Instrumentation Cores
Shared instrumentation cores and mass-spec facilities holding reference standards for cross-PI method validation and reagent qualification.
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We usually reply within 24 hours with pricing, lead time and the batch COA of the offered lot (HPLC purity, MS identity, endotoxin, fill amount). Sequence work, water, counter-ion and other tests are quoted on request.