Calculate target mg/mL concentration, gross lyophilizate overfill (HPLC purity × net peptide content), and μM molarity.
Reference B2B wholesale presentation: unbranded Type I neutral borosilicate glass lyophilized vials (3 mL / 10 mL) and plain white 10-vial protective divider box.
Reference B2B wholesale presentation: unbranded Type I neutral borosilicate glass lyophilized vials (3 mL / 10 mL) and plain white 10-vial protective divider box.
KPV (Lys-Pro-Val) Lyophilized Research Peptide Supply
KPV (Lys-Pro-Val) lyophilized research peptide for qualified B2B sourcing, with batch-linked HPLC purity and ESI-MS identity records, custom fill quantity, and documentation review.
KPVLys-Pro-ValBatch HPLC + MSCustom fill quantityResearch use only
Review specifications, files, and next-step support before requesting samples.
- Confirm the peptide name, CAS, and core specifications
- Check typical applications and document availability
- Use one inquiry path for pricing, files, samples, or project discussion
Key Review Snapshot
Key Review Snapshot
Start with the review points that shape quotation quality.These checkpoints help buyers align file scope, vial format, packaging, MOQ, lead time, and buyer-side review before comparing supplier offers.
Product FormatLyophilized peptide vial
Supply FocusB2B sourcing and documentation review
DocumentationBatch COA stating RP-HPLC purity and MS identity, plus SDS/MSDS and specification sheet. Karl Fischer water content and counter-ion data are arranged per project where a specification requires them.
Quotation ScopeFill amount, vial count, packaging format, MOQ, and lead time are confirmed together at quotation stage.
PackagingSealed lyophilized vial with stopper and cap. Neutral-label or private-label discussion for qualified projects. Store unopened vials at 2–8 °C as standard, or −20 °C for long-term storage — approximately 24 and 36 months respectively as WUMO product guidance, with the batch COA and product documentation governing. Keep sealed, protected from light and moisture.
ComplianceBuyer-side market review required
Compare Track A (~5–7 day stock dispatch) vs. Track B (4–6 week custom runs) and 60-day sample credit.
Verify our exhibiting entity (Suzhou Xilin Technology Co., Ltd.), booth photos, and on-site COA/HPLC review.
Why buyers trust WUMO
Real content, documented — not guesswork
In peptide sourcing, chromatographic purity and delivered quantity require separate evaluation. We keep purity and labeling basis distinct on available documentation, so buyers can review analytical parameters for their quoted batch before ordering.
Purity vs quantity distinction
Purity (%) and reported quantity are distinct analytical parameters. Review purity and reported quantity separately, and confirm the labeling and assay basis for the batch proposed for your order.
Batch-specific documents
Batch documentation reflects the specific lot produced. Ask which batch-specific documents are available for the quoted lot, including COA and supporting HPLC or MS records where applicable.
Documented before commitment
Ingredient identity (INCI / CAS), specification sheet, and SDS are available for technical review. Confirm documentation for the batch proposed for your order before purchase.
Documents Available
Documents Available
COA
Batch-specific COA
Batch-level quality summary for buyer-side file review.
Request this file through the inquiry path below.
HPLC
HPLC Purity Report
Purity profile reference for the quoted project or batch where available.
Request this file through the inquiry path below.
MS
ESI-MS Identity Report
Identity confirmation support for documentation review where available.
Request this file through the inquiry path below.
SDS
SDS/MSDS
Safety document requested for internal purchasing and handling review.
Request this file through the inquiry path below.
Overview
Overview
B2B Review Guide
B2B Review Guide
Product Overview
KPV is a tripeptide, Lys-Pro-Val, supplied here as a lyophilized research peptide raw material for qualified B2B sourcing projects. Fill quantity, vial format, packaging, and documentation scope are set per project. This page describes sourcing and analytical documentation only; it does not describe biological action, end-user application, or product performance.
Batch Analytical Record
The batch analysed on 21 July 2026 carries both a purity and an identity record. Both are supplier-side quality control performed in the production laboratory rather than third-party verification; independent confirmation can be arranged separately where authorised.
| Measurement | Result | Method and date |
|---|---|---|
| Purity (RP-HPLC) | 99.01% by area | Shimadzu LabSolutions, UV 220 nm, 21 July 2026 |
| Identity (ESI-MS) | [M+H]⁺ 343.37; [2M+H]⁺ 685.90; [2M+Na]⁺ 707.87 | Waters ZQ2000, electrospray positive mode, 21 July 2026 |
| Molecular weight | 342.43 | Consistent across the protonated, dimer, and sodiated dimer ions |
Small peptides such as KPV commonly appear in an electrospray spectrum as more than the singly protonated ion alone — here the protonated molecule, a proton-bound dimer, and a sodiated dimer are all present, and all three are consistent with the same molecular weight. Agreement across several ion forms is a stronger identity statement than a single peak, because a coincidental match at three different mass values is far less likely than at one.
Purity is an area-percent figure at 220 nm. It reports how clean the material is and is a separate question from content or assay, which reports how much peptide a given fill contains. Batch identifier, retest date, appearance, water content, and counter-ion form are confirmed on the batch-specific COA supplied with a quotation. For background on reading these records, see how peptide identity is confirmed by mass spectrometry.
What WUMO Can Supply
- Lyophilized KPV raw material for qualified B2B research projects
- Custom fill quantity and vial format discussion
- Batch-specific COA under documentation review
- HPLC purity and ESI-MS identity records for the supplied batch
- Neutral-label or private-label packaging support
- MOQ, lead time, and phased delivery planning
Quality and Documentation
Documentation a technical procurement team reviewing KPV typically requests includes batch-specific COA, HPLC purity records, ESI-MS identity records, appearance, water content, counter-ion form, and SDS/MSDS. Scope may vary by batch and project; specific values are subject to batch-specific COA and project confirmation.
Compliance Note
This page is for qualified B2B technical evaluation and business-side documentation review only. Material is supplied as a raw material for research and laboratory use. This page is not intended for individual purchase, consumer use, or product-use guidance, and WUMO does not provide medical guidance or outcome claims. Final use, importation, labeling, and local compliance are the buyer's responsibility.
Specification and documentation references
Before requesting a quotation, these guides cover the specification and document questions that come up most often on this product.
- Lyophilized vial sourcing guide — fill amount, packaging, MOQ and documentation.
- What a 10mg vial actually contains — how peptide content, counterion, moisture and excipients divide up the mass, and what a per-vial claim needs behind it.
- Lyophilized cake appearance and reconstitution — why cakes hold or collapse, what the excipient system does, and what can reasonably be specified.
FAQ
Frequently Asked Questions
What purity and identity records come with a KPV batch?
An HPLC purity record and an ESI-MS identity record for the supplied batch, alongside the batch-specific COA. The batch analysed on 21 July 2026 returned 99.01% by area at 220 nm, with identity confirmed across three ion forms.
Is the purity figure the same as content or assay?
No. Purity by area normalisation reports how clean the material is; content or assay reports how much peptide is present in a given quantity. They are separate measurements and should be reviewed separately before a purchasing decision.
Are these records third-party verified?
The records described here are supplier-side quality control. Independent third-party verification is a separate exercise and can be arranged where authorised; the two are most useful together.
What fill quantity is available?
Fill quantity and vial format are set per project rather than fixed on this page. Share your target quantity and packaging preference and it can be confirmed with MOQ and lead time.
What should I send to get a KPV quotation?
Company and business type, destination market, intended business use, required documentation package, target fill quantity and estimated volume, packaging preference, and required timeline.
Wholesale Distribution & OEM Private Label
Sourcing KPV (Lys-Pro-Val) Lyophilized Research Peptide Supply for regional distribution or your own brand?
Compare 7-day ready stock (unbranded 100% Type I neutral borosilicate vials in plain white 10-vial kits) against 4–6 week scheduled factory production with 60-day blind-test sample price credit, 20+ flip-off cap colors, standard lot-matched COA + RP-HPLC + LC-MS, and optional project-specified LAL/uniformity QC: see our Regional Distributor Program or Private-Label Vial OEM Service.
Request Pricing, Files, or Samples
Use this form for pricing, technical files, sample requests, or project discussion for this product.
Need COA, SDS/MSDS, or specifications? Choose "Technical document request" in the inquiry form or mention the file name in your message.