Live · Phoenix, AZ Catalog · Issue 026 / MMXXVI For research use only

Research peptides, documented.

Dalton is a small peptide laboratory in Phoenix. We synthesize forty-odd compounds in-house, fingerprint every lot by HPLC and mass spec, and ship them on dry ice next day.

Compounds in stock
40+
Standard purity
≥98.5% HPLC
Identity verification
ESI-MS± 0.5 Da
Dispatch from
PHXAZ · 85012
01 / Operating principles

Three things we won't
negotiate.

Dalton was founded in 2019 by three biochemists who wanted research peptides documented the way reference standards always should have been — with a sequence, a chromatogram, a lot number, and a name on the release record.
01 · Synthesis

We make it. We don't relabel it.

Every compound listed is built on our own solid-phase synthesizers and purified by preparative HPLC. No brokered material, no white-label repackaging.

02 · Verification

Identity confirmed, not assumed.

Each lot is fingerprinted by ESI-MS before it leaves the bench. Observed mass, calculated mass, purity figure, and lot ID are recorded on the certificate of analysis.

03 · Custody

Cold-chain, end-to-end.

Overnight from Phoenix on dry ice for liquids, gel packs for lyophilized vials. Chain of custody documented from freezer to courier to door.

02 / Catalog by class

Eight classes,
forty-odd compounds.

The catalog is organized by primary mechanism rather than marketing category. Browse a class below or open the full register for the unfiltered view.
03 / Lab process

Bench to freezer
in four steps.

From dry resin to released lot. Every step is logged in our electronic lab notebook against the lot number printed on the vial cap.
01

Solid-phase synthesis

Fmoc chemistry on rink-amide or Wang resin. Coupling cycles tracked in real time; failed cycles trigger a re-coupling rather than a batch carry-forward.

02

Preparative HPLC purification

Reverse-phase C18 against a water/acetonitrile gradient with 0.1% TFA. Fractions pooled by analytical HPLC before lyophilization.

03

Mass-spec identity verification

Positive-mode ESI-MS. Observed and calculated monoisotopic masses recorded; deviation greater than 0.5 Da fails the lot.

04

Release & cold storage

Endotoxin clearance via recombinant Factor C, COA signed, vial stored at −20 °C until dispatch. Cold-chain log starts at the freezer door.

DALTON / COA
Issue
2024 · 08
BPC-157
5 MG · Lyophilized
Lot DLT-240814-A1
Sequence
GEPPPGKPADDAGLV
Mol. weight
1419.55 g/mol
HPLC purity
99.12 %
ESI-MS m/z
[M+H]⁺ 1420.56
Endotoxin
< 1.0 EU/mg (rFC)
Water content
3.8 % (KF)
Acetate
5.2 % (IC)
Date of analysis
2024-08-14
Analyst
A. Reyes, B.S.
Released by
M. Ostrander, Ph.D.
04 / Open the register

Browse forty-two
compounds in stock.

Enter catalog