Research intermediates · 1 g to 100 g
Grams,
not kilograms.
Manufacturers sell intermediates by the kilo. Your reaction needs five grams. We hold the stock, split it, document every lot and ship it — so the research doesn’t stop while you wait.
- compounds listed
- 226
- compounds listed
- pack sizes
- 1–100 g
- pack sizes
- custom quote
- 2 days
- custom quote
1 g → 100 g
01Packs sized for the bench
Split from kilogram lots into the amount a project needs. No minimum order.
CoA · SDS
02Documents with every lot
Lot certificate of analysis and safety data sheet in English, before you order and in the box.
Verified
03Institutions only
We sell to research institutions and companies we have checked — that is why labs can trust the chain.
Worldwide
04Export by express courier
Classified, packed and documented for air transport to labs outside Korea.
Browse
By compound class
GLP-1 & metabolic peptides
18Incretin agonists, glucagon-family and amylin analogues for metabolic research.
Repair & longevity peptides
17BPC-157, thymosins, copper peptides and mitochondrial peptides.
GH secretagogues
12GHRH analogues, ghrelin mimetics and hGH fragments.
Melanocortin & reproductive
16Melanocortin agonists, GnRH analogues, kisspeptin, oxytocin and vasopressin.
Neuropeptides & hormones
50Signalling peptides, regulatory hormones and opioid peptides for receptor pharmacology.
Amyloid & neurodegeneration
15Amyloid β, tau, amylin and prion peptides with matched controls.
Tags & immune epitopes
37Affinity-tag peptides for elution and blocking, MHC epitopes for T-cell assays.
Cell-penetrating & targeting
19CPPs and integrin, NGR and BBB-targeting motifs for delivery research.
Enzyme substrates & inhibitors
28Fluorogenic caspase, protease and kinase substrates, and peptide inhibitors.
Antimicrobial & antithrombotic
14Host-defence peptides and peptide anticoagulants.
Made to order · 2–6 weeks
Research peptides
CAS 137525-51-0
BPC-157
15 aa · 1419.5 g/mol · ≥98% (HPLC)
CAS 910463-68-2
Semaglutide
4114 g/mol · ≥98% (HPLC)
CAS 107761-42-2
Amyloid β (1-42), human
42 aa · 4514 g/mol · ≥95% (HPLC)
Peptide
OVA (257-264)
8 aa · 963.1 g/mol · ≥95% (HPLC)
Why we exist
Waiting for a reagent is research time that disappears.
Without someone in the middle who splits kilos into grams, a lab either makes the intermediate itself or waits months — and sometimes changes the project instead.
Aldrich began in 1951 because chemists couldn’t buy what they needed. Enamine’s gram-scale stock changed how fast drug discovery moves. We’re building the same thing for the intermediates the big catalogues leave on back-order: stock on the shelf, real documents, and only as much as you need.
About gramsource →Customer verification
We check who we sell to.
That’s the point.
Most intermediates have more than one use. We don’t drop useful compounds from the catalogue — we verify the buyer, with checks scaled to each compound.
How verification works →Institution, contact and intended use confirmed with the order.
Institutional verification and a signed end-use statement on every order.
Only under the licences and notifications the law requires.
Need a compound we don’t list, or a larger pack?
Send the CAS number, quantity and purity. We quote from our manufacturer network within two business days.