SeamlessBio — CRO Supply · Lot Consistency · No MOQ · EU Stock
Reagents for Contract Research Organisations — Lot Consistency, EU Supply & Audit-Ready Documentation
CROs operate under a unique set of constraints: reagent lots must be consistent across multiple client studies, documentation must satisfy multiple client quality systems simultaneously, supply interruptions directly delay billable milestones, and no minimum order quantity is essential because study sizes vary dramatically between projects. SeamlessBio is built for CRO supply chains.
Why CROs Have Different Supply Needs Than Research Labs
A research lab typically runs one study type with one cell line and one serum lot — once validated, they stay on it. A CRO may run 10–20 simultaneous client studies, each with different cell lines, different assays, and different client-specified quality requirements. This creates four specific supply challenges:
| CRO Challenge | Consequence | SeamlessBio Solution |
|---|---|---|
| Multi-client lot management | Lot changes mid-study trigger client re-validation requests and delay invoicing | Batch reservation per study — one lot held exclusively for the study duration |
| No minimum order quantity | Forced overstock of reagents for small-n studies; write-off cost | Order from 50 mL to bulk — same lot, same supplier, no MOQ |
| Multi-client documentation | Different clients require different document formats — CoA, CoO, TSE/BSE, viral testing | Full documentation pack per lot — assembled for each delivery |
| EU supply chain risk | US-origin serum: import delays, currency exposure, cold-chain transatlantic risk | EU stock in Passau — 24–48h cold-chain delivery across DACH and EU |
| Audit readiness | Client audits require supplier qualification documentation at short notice | Supplier qualification documentation (ISO 9001, material specs) available on request |
Most-Requested CRO Products — By Assay Category
| Assay Category | Product | CRO Use Case |
|---|---|---|
| ELISpot / PBMC immunogenicity | FBS Very Low Endotoxin ≤1 EU/mL or Human Serum AB HI | Vaccine immunogenicity batch testing, clinical immunomonitoring CROs |
| ADCC / cytotoxicity assays | FBS Ultra Low IgG <5 µg/mL | Bioanalytical CROs running mAb ADCC potency assays for pharma clients |
| DMPK transporter assays | Cell4Pharma ABC Transporter Vesicle Kits | DDI screening CROs; IND-enabling DMPK studies for small pharma |
| Cell-based potency assays (CAR-T, ATMP) | Human Serum AB HI + FBS VLE ≤1 EU/mL | CROs running release testing and QC assays for ATMP manufacturers |
| 3D tumour spheroid drug screening | FBS Low Endotoxin ≤5 EU/mL | Oncology-focused CROs; patient-derived organoid screening platforms |
| ABC transporter / DILI | BSEP-Vesikel-Kit + FBS, endotoxinarme | Safety pharmacology and DILI risk assessment CROs |
| Hybridoma / antibody production | FBS – extrem niedriger IgG-Wert + BSA, endotoxinarme | Custom mAb development CROs supplying antibody libraries to pharma |
| Viral vaccine production (Vero/MDCK) | NCS Australian origin | Vaccine manufacturer CROs — fill-finish or antigen production outsourcing |
Documentation Available for Client Qualification
| Document | Available | Format |
|---|---|---|
| Certificate of Analysis (CoA) | ✓ Per lot | PDF per shipment |
| Certificate of Origin (CoO) | ✓ Per lot | PDF per shipment |
| TSE/BSE Statement | ✓ Per lot | PDF per shipment |
| Viral Safety Testing Report | ✓ Per lot (FBS + human sera) | PDF per lot |
| Donor Screening Records | ✓ Per lot (human sera) | PDF per lot |
| Supplier Qualification Documentation | ✓ On request | ISO 9001 cert, quality agreement |
| Change Notification | ✓ Proactive notification on any spec change | Email notification + updated CoA |
| Batch reservation certificate | ✓ On request — for client-specific lots | Letter of reservation per study |
Frequently Asked Questions
Can we reserve a lot exclusively for a single client study?
Yes — SeamlessBio offers study-specific lot reservation without prepayment during the evaluation phase. The reserved lot is held exclusively for your study and not released to other customers. Call-off volumes can be as small as 100 mL or as large as the full lot — same lot number, same specification, same documentation throughout the study. For multi-phase studies requiring 12+ months of supply from the same lot, extended reservation is available on request.
How do you handle multi-client studies that require different serum grades?
SeamlessBio maintains EU stock of all specialty grades simultaneously — FBS Low Endotoxin, Very Low Endotoxin, Ultra Low IgG, Tet-Free, ES Cell Pre-Tested, Heat Inactivated, Gamma Irradiated, plus Human Serum AB OTC Male, HI, Delipidated, and the Cell4Pharma DMPK kit portfolio. CRO accounts receive priority delivery and can order mixed grade shipments on a single order. Account-level batch reservation maps each study to its specific lot number for full traceability.
What is the typical lead time for EU delivery?
Standard EU delivery: 24–48 hours from Passau to DACH; 2–4 days to other EU countries. All serum and reagent shipments are shipped on dry ice via validated cold-chain courier. For urgent study timelines, same-day dispatch before 14:00 CET is available on request for stocked items.
CRO Account Setup — No MOQ, Batch Reservation, Priority Delivery
Contact us to set up a CRO account with lot reservation, multi-study tracking, and priority delivery across DACH and EU. Full documentation pack per lot.
Email: info@seamlessbio.de | +49 851 37932226
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