Recombinant Factor C (rFC) Endotoxin Detection Kit
Animal-free endotoxin test: recombinant Factor C detects bacterial endotoxin by endpoint fluorescence — no β-glucan interference, 0.005–5 EU/mL range, results in 1 hour at 37 °C. Validated to EP 11.0 and USP <1225>/<86>.
Catalog no. rFC-48T / rFC-96T · Ships with certificate of analysis
For Research Use OnlyOverview
Overview
Every LNP formulation destined for injection must clear endotoxin testing before release. This kit does it without horseshoe crab blood: recombinant Factor C (rFC) recognises bacterial endotoxin and cleaves a fluorogenic substrate — the stronger the signal, the higher the endotoxin load. Unlike traditional LAL assays, rFC contains no Factor G and is not fooled by β-glucans, so false positives are rare and batch-to-batch consistency is high. It is the direction global regulators and the industry are moving in.
Key specifications
| Method | endpoint fluorescent assay |
|---|---|
| Assay range (standard) | 0.005–5 EU/mL |
| Assay range (rapid) | 0.01–10 EU/mL |
| Limit of quantification | 0.005 EU/mL |
| Time to results | 1 hour at 37 °C |
| Excitation / emission | 380 / 440 nm |
| Standard curve | 4 points (5 / 0.5 / 0.05 / 0.005 EU/mL), R ≥ 0.98 |
| Spike recovery | 50%–200% (acceptable) |
| Shipping / storage | blue ice; unopened 2–8 °C |
| Intended use | For Research Use Only |
Method validation
Specificity, sensitivity, precision, accuracy and suitability validated following European Pharmacopoeia EP 11.0 and USP <1225> / <86>. The endotoxin standard is traceable to USP reference standard.
Pack sizes
| Size | Part number |
|---|---|
| 48 tests | rFC-48T |
| 96 tests | rFC-96T |
Kit contents (96 tests)
| Bacterial endotoxin standard | 1 vial |
|---|---|
| Recombinant Factor C protein | 96 tests |
| Fluorogenic substrate | 96 tests |
| Water for bacterial endotoxins test | 50 mL |
| 96-well endotoxin-free black plate | 1 plate |
Samples and applications
Injectables, biologics, infusion cells, medical devices and cell culture media — plus in-process control of raw water, intermediates and finished product. Especially suited to samples containing β-glucans that trigger false positives in traditional LAL assays, and to LNP / mRNA release testing prior to animal administration.
Key features
- No β-glucan interference — no Factor G in the kit, unlike LAL reagents
- Sensitive and wide-ranging — quantification down to 0.005 EU/mL
- Fast — results in about 1 hour, handling comparable to chromogenic LAL
- Traceable — endotoxin standard traceable to USP reference material
- Animal-free and supply-stable — recombinant production, consistent between batches, aligned with global regulatory direction away from animal-derived reagents
Notes
- Requires a fluorescence microplate reader capable of 380 / 440 nm, plus endotoxin-free tips and glassware (the kit includes one endotoxin-free black plate). This is an instrumental readout assay, not visual judgement.
- Catalogue numbers, COA and the full validation report are confirmed at enquiry.
- For Research Use Only. Not a drug and not a diagnostic reagent; supplied exclusively for research applications.
- Certification documents available on request and verifiable by certificate number. FOB pricing, MOQ and lead time quoted at enquiry.
| Product | Recombinant Factor C (rFC) Endotoxin Detection Kit |
|---|---|
| Catalog no. | rFC-48T / rFC-96T |
| Category | QC & Analysis |
| Documentation | Certificate of analysis provided with every lot |
| Intended use | For Research Use Only (RUO). Not for diagnostic or therapeutic use. |
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