QSC Manufacturing
For buyers evaluating QSC as a production partner — custom volumes, a dedicated private-label run, or a molecule outside our standard catalog — rather than ordering from the existing SKU list.
8
years synthesizing
1,200 m²
GMP-grade facility
188+
SKUs in current production
Three ways to work with us
Catalog wholesale
From 10 kits per SKU
Existing SKUs in 10-vial kits, with volume pricing at 50 and 100+ kits.
Wholesale termsPrivate label
100 kits per SKU, or a dedicated batch
Your label on stock we already carry (100 kits per SKU), or a fully dedicated run of 40,000 vials across your SKU mix.
Private label termsCustom or new molecule
Scoped per request
A sequence or CAS number that isn't on the main site. We confirm feasibility and rough lead time before anything is quoted.
Send us the moleculeIn-house, not brokered
Synthesis, purification, and lyophilization all happen at our own GMP-grade facility — nothing is subcontracted or resold from a third-party synthesizer. We're the lab that makes it, not a reseller adding a markup.
Parallel batch capacity
Multiple molecule categories run in production at once, each gated through its own analytical release before it reaches inventory — a dedicated run for one buyer doesn't block the next.
Equipment
CSBio automated solid-phase synthesizers for the amino-acid chain, preparative HPLC for purification, and analytical HPLC + LC-MS for the identity/purity testing every batch clears before release.
Beyond the standard catalog
If a molecule you need isn't listed on the main site, that's a capacity/sourcing conversation, not a dead end. Raw-material sourcing and feasibility get checked per request — tell us the sequence or CAS number you're working with.
Check it before you write
Claims about a factory are cheap. These are the records you can look up yourself.
What to send in your first message
With these five items we can answer feasibility and rough lead time in one reply.
- Molecule name, sequence or CAS number
- Target volume (vials or grams) and vial size
- Timeline, and whether this is a one-off or a repeat order
- Your own label or ours
- Destination country (we ship DDP, duties and taxes paid by us)
Contact
support@qscpeptidology.com
The button opens a pre-filled email. If nothing opens, copy the address above.
Looking for bulk pricing on an existing catalog SKU? See Wholesale. Need your own label or packaging on a molecule we already carry? Private label covers MOQ, packaging options, and the standard molecule lineup. Want to see what we make first? Browse the catalog or read how buying direct from a China manufacturer works.
Common questions
Is this different from the Wholesale or Private Label pages?
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Yes. Wholesale and Private Label cover ordering more of, or relabeling, what's already in our catalog. This page is for a different conversation: can QSC manufacture something not currently listed, or take on a volume/format outside those two programs' normal scope.
Can you synthesize a molecule that isn't in your catalog yet?
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Often, yes — it depends on the sequence, scale, and raw-material availability. Send the molecule name, sequence, or CAS number and the volume you're thinking about, and we'll confirm feasibility and rough lead time before anything is quoted.
What's your production capacity?
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Several molecule categories run in parallel at any given time, each as its own gated batch — we don't queue every order behind a single production line. Exact throughput for a specific volume is a per-request conversation, since it depends on which molecule and what else is already in production.
Do you do fully dedicated, exclusive batches?
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Yes — this is the same dedicated-batch tier covered on the Private Label page (40,000 vials across your SKU mix, your own label, independently verified under your name). This page exists for buyers evaluating the manufacturing capability itself before getting into packaging specifics.
How can I check your quality claims before writing to you?
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Published Janoshik reports can be verified on Janoshik's own site with the report key, and released batches have HPLC and LC-MS results in the COA archive. Both are linked above; you don't have to take our word for it.
Do you ship internationally, and who pays duties?
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Yes. Orders ship with DHL, UPS or FedEx tracking, delivered duty paid (DDP) to 58 countries: we pay the duties and taxes, so there is no customs bill for you at the door.
Is this for human use?
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No. Everything we make is sold for laboratory research use only, not for human or veterinary use, and our terms require buyers to pass that restriction on.
How do I start this conversation?
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Email us with what you're trying to make — molecule, target volume, and timeline — and whether you already know you want private labeling or just need the product manufactured. We'll tell you honestly if it's something we can do.