On reading HPLC traces. Read →

Lyochem
≥98.5% HPLC · Lot Data

Peptides you can cite in a paper.

Lyochem synthesizes characterised research peptides for biomedical labs, biotech R&D, and CROs. Every lot ships with its own analytical packet: RP-HPLC chromatogram, ESI-MS identity, and MS/MS sequence on request — methodology, not marketing.

MS-confirmed identity
Sequence verified by LC-MS/MS

RP-HPLC · Illustrative lot

BPC-157 · Lot LC-26-A0517

99.42 %
Illustrative reversed-phase HPLC chromatogram of BPC-157, lot LC-26-A0517, showing the main peak at retention time 6.84 min with 99.42% integrated peak area, three minor by-product peaks below 0.4% each, and a clean baseline through 10 min.99.42 %tR 6.840510 min

Sequence

15-mer

MW

1419.55

CAS

137525-51-0

ESI-MS

1420.6

Illustrative HPLC trace · BPC-157 lot LC-26-A0517 · representative of a ≥99 % released lot

Analytical scope on every lot

  • ≥98.5% HPLC
  • Mass-Spec Confirmed
  • Sequence-Verified
  • Stability-Tested
  • USP / EP / ICH Aligned
  • Per-Lot Data Packet

Methods aligned with USP ⟨621⟩ · ⟨1225⟩ · ICH Q2 · EP cosmetic-ingredient framework

Most-cited research peptides

Browse standards. Sortable by purity, MW, or vial size.

Twelve of the 57 characterised reference standards in the Lyochem library. Every entry ships with the same lot-specific analytical packet (RP-HPLC + ESI-MS + MS/MS on request) so the data below carries through to the COA you receive.

All entries supplied for Research Use Only (RUO) and sold exclusively to qualified academic, biotech R&D, and CRO buyers. See the B2B / RUO policy.

Lot Report · Excerpt

TB-500 · Lot LC-26-B0312

Released
RP-HPLC purity
98.94 %
ESI-MS [M+H]⁺
4961.4 Da
MS/MS sequence
Confirmed
Water (KF)
5.2 %
Counter-ion
Acetate
Stability (12 mo)
≥ 97 % retained

The lot report is the document you reference in your supplementary materials and your supplier-qualification file. Every release carries the same scope.

Illustrative lot report excerpt · TB-500 lot LC-26-B0312 · representative scope released with every shipment

Quality you can verify

Lot data first. Sales second.

Every Lyochem lot is released with its own analytical packet — chromatogram, mass spectrum, sequence confirmation, water content, stability. Methods are aligned with USP <1225>, EP, and ICH Q2 — the document a paper reviewer or CRO QA team can read directly off the page.

≥98.5%

HPLC purity floor

MS/MS

Sequence verified

12-mo

-20 °C stability

RP-HPLC + ESI-MS on every release, integrated purity reported at the main retention time, mass within ± 0.5 Da of theoretical.

LC-MS/MS sequence on request — b- and y-ion ladder assignment against the theoretical sequence; full-ladder coverage reported on the data packet.

−20 °C stability programme through 12 months; accelerated 40 °C add-ons on request for first-time supplier qualification.

Lab Notes

Methodology briefs from the bench.

Short methodology briefs aimed at bench scientists and CRO QA teams. Where the catalogue answers “what is the standard?”, the lab note answers “how do I read its data?”.

Read all lab notes

Request a data packet.

First reply under 12 hours from a synthesis chemist or analytical contact — not a templated auto-response. Lot-specific HPLC chromatogram, ESI-MS identity, MS/MS sequence (on request), KF water, and stability data returned with the quote.

WhatsApp