Research Use Only — Not for human or veterinary useThird-party HPLC + MS on every lotLyophilized under nitrogen · 99%+ typical purityCold-chain shipping, same-day cutoff 3:00 PM CSTResearch Use Only — Not for human or veterinary useThird-party HPLC + MS on every lotLyophilized under nitrogen · 99%+ typical purityCold-chain shipping, same-day cutoff 3:00 PM CSTResearch Use Only — Not for human or veterinary useThird-party HPLC + MS on every lotLyophilized under nitrogen · 99%+ typical purityCold-chain shipping, same-day cutoff 3:00 PM CSTResearch Use Only — Not for human or veterinary useThird-party HPLC + MS on every lotLyophilized under nitrogen · 99%+ typical purityCold-chain shipping, same-day cutoff 3:00 PM CST
Lot & C.
Research Supply
AccountCart 0
Quality program

A supplier is only as good as its paperwork.

Lot & Co. is the laboratory supply brand of Intersectus Supply, LLC. We buy synthesis capacity, not marketing claims: every lot is purified to specification, identity-confirmed, independently re-tested, and released under a signed certificate that stays queryable for seven years. Materials are sold for in-vitro laboratory research only.
01
Synthesis
SPPS under contract with audited partner facilities; every batch tied to a raw-material genealogy.
Fmoc / SPPS
02
Cleavage & purification
Preparative RP-HPLC to a target ≥99% single-peak fraction, pooled and re-analyzed.
Prep RP-HPLC
03
Identity
ESI-MS confirmation against calculated monoisotopic mass, ±0.1 Da tolerance.
ESI-MS
04
Independent re-test
A blind aliquot goes to a second accredited lab. Disagreement quarantines the lot.
Third party
05
Fill & lyophilize
Class 7 fill, nitrogen headspace, crimp seal, then 100% visual and weight check.
ISO 7 fill
06
Release & ship
QA signature binds the COA to the lot code; cold-chain packout with temperature strip.
2–8 °C
Release panel

Every test the record carries.

results as published per lot
01 · RP-HPLC · 220 nm
Purity

Reverse-phase HPLC separates the target peptide from deletion sequences, truncations and other related impurities. The main peak's share of total area is the purity figure on the lot.

results appear as lots are published
Who we sell to
Academic and commercial laboratories, contract research organizations, and qualified resellers with a verifiable business address and a research attestation on file.
What we will not do
We do not market materials for human or veterinary use, make therapeutic claims, or supply accounts that represent our products as drugs, foods, cosmetics or devices.
How to reach QA
Analytical questions, method details, and re-test requests go straight to the quality desk — not to a support queue. Response within one business day.
Lot & C.
A brand of Intersectus Supply, LLC
All products sold by Lot & Co. are intended for laboratory research use only. They are not drugs, foods, cosmetics, or medical devices, and may not be misbranded, misused, or mislabeled as such. Not for human or veterinary consumption.
© 2026 Intersectus Supply, LLC