Product Overview
CFR18UM-10 Carboxyl Red Fluorescent Microspheres are high-performance fluorescent polystyrene microspheres designed for fluorescence labeling, calibration and biomolecule conjugation. Featuring bright red fluorescence, highly uniform particle size and reactive surface carboxyl groups, these microspheres deliver reliable performance in fluorescence imaging, flow cytometry and life science research.
Supplied as a 1% aqueous suspension, CFR18UM-10 provides excellent suspension stability, high fluorescence intensity and outstanding batch-to-batch consistency. The surface carboxyl groups can be activated using EDC/NHS coupling chemistry to covalently immobilize antibodies, proteins, peptides and other amine-containing biomolecules for diagnostic assays and analytical applications.
Key Features
Uniform 18 μm particle size
Bright red fluorescence
Surface carboxyl functional groups
High fluorescence intensity
Excellent particle size uniformity
Stable aqueous suspension
Compatible with EDC/NHS coupling
High biomolecule conjugation efficiency
Excellent optical visibility
Outstanding batch-to-batch consistency
Technical Specifications
Parameter | Specification |
|---|
Product Code | CFR18UM-10 |
Material | Fluorescent Polystyrene Microspheres |
Particle Size | 18 μm |
Surface | Carboxyl (-COOH) |
Solid Content | 1% Suspension |
Excitation (Ex) | 530 nm |
Emission (Em) | 580 nm |
Appearance | Red Fluorescent Suspension |
Storage | 2–8°C |
Packaging | 10 mL / 20 mL / 100 mL |
Applications
Cell Labeling
Cell Tracking
Flow Cytometry
Fluorescence Microscopy
Instrument Calibration
Fluorescence Calibration
Antibody Conjugation
Protein Labeling
Molecular Diagnostics
Life Science Research
Product Advantages
CFR18UM-10 combines bright red fluorescence with highly reactive carboxyl functional groups to provide efficient biomolecule conjugation and stable fluorescence performance. The 18 μm particle size offers excellent optical visibility and is particularly suitable for fluorescence microscopy, flow cytometry calibration, instrument verification and fluorescence-based analytical assays. Uniform particle size distribution and stable fluorescence ensure highly reproducible experimental results across research and diagnostic applications.
Storage and Handling
Store at 2–8°C.
Do not freeze.
Protect from direct light.
Keep the container tightly sealed.
Gently invert before use.
Avoid repeated freeze-thaw cycles.
Prevent microbial contamination during handling.
Customization Service
SANYU GROUP provides customized fluorescent microspheres including:
Customized particle sizes
Customized fluorescence intensity
Customized excitation and emission wavelengths
Surface functionalization
Customized solid content
OEM manufacturing
Bulk production
Custom packaging
Frequently Asked Questions
What are Carboxyl Red Fluorescent Microspheres?
Carboxyl Red Fluorescent Microspheres are fluorescent polystyrene microspheres with reactive carboxyl groups designed for fluorescence labeling, biomolecule conjugation, calibration and analytical applications.
What are the excitation and emission wavelengths of CFR18UM-10?
CFR18UM-10 has an excitation wavelength of 530 nm and an emission wavelength of 580 nm, providing bright and stable red fluorescence for fluorescence microscopy, flow cytometry and diagnostic instrumentation.
What applications is CFR18UM-10 suitable for?
CFR18UM-10 is widely used for cell labeling, fluorescence microscopy, flow cytometry, fluorescence calibration, instrument calibration, antibody conjugation, molecular diagnostics and life science research.
Can antibodies be conjugated to CFR18UM-10?
Yes. The surface carboxyl groups can be activated using EDC/NHS chemistry to covalently conjugate antibodies, proteins, peptides and other amine-containing biomolecules.
How should CFR18UM-10 be stored?
Store at 2–8°C, protect the suspension from light, avoid freezing, and gently invert before use to maintain uniform particle dispersion and optimal fluorescence performance.
