RH
Exceptional purity for peptide research
We've been sourcing research-grade peptides for several years. Rainbow Peptide's vials consistently pass our HPLC verification — purity exceeds 98% every batch. COA matched our internal testing exactly.
HPLC Verified
>98% Purity
COA Included
SOMA Recovery & Tissue Repair
Phosphate Buffered Saline (PBS) 20mL
$19.99
Research-grade Phosphate Buffered Saline (PBS), 20mL, pH 7.4. Sterile, endotoxin-free buffer for peptide reconstitution, cell culture maintenance, and laboratory protocols. COA included.
| Format | Sterile Solution |
|---|---|
| Volume | 20mL |
| pH | 7.4 ± 0.1 |
In Stock — Overnight and 2–3 day delivery available
Product Information
Phosphate Buffered Saline (PBS) 20mL | Sterile Research Buffer
Phosphate Buffered Saline (PBS) is the most widely used isotonic buffer in biological research, providing a physiologically compatible environment (pH 7.4, 137mM NaCl, 2.7mM KCl, 10mM phosphate) for cell culture, protein work, and peptide reconstitution. This 20mL sterile preparation is produced under controlled manufacturing conditions with endotoxin testing to ensure suitability for sensitive research applications.
Research Applications
- Peptide reconstitution — suitable diluent for water-soluble peptides; maintains stability at neutral pH
- Cell washing and culture — isotonic formulation prevents osmotic shock during cell washing, passaging, and FACS preparation
- Western blot and ELISA — standard diluent for antibodies, blocking buffers, and wash steps
- Flow cytometry — used as suspension and wash buffer for cell surface marker staining protocols
Specifications
pH 7.4 (±0.1 at 25°C) | Osmolality: 280–310 mOsm/kg | Endotoxin: <0.1 EU/mL | Sterility: 0.2µm filtered | Storage: 2–8°C or room temperature.
For Research Use Only. Rainbow Peptide supplies this compound exclusively for in vitro and laboratory research purposes. Not for human or veterinary use.
Frequently Asked Questions
- What is Phosphate Buffered Saline (PBS) 20mL?
- Research-grade Phosphate Buffered Saline (PBS), 20mL, pH 7.4. Sterile, endotoxin-free buffer for peptide reconstitution, cell culture maintenance, and laboratory protocols. COA included.
- Is Phosphate Buffered Saline (PBS) 20mL for sale at Rainbow Peptide?
- Yes. Phosphate Buffered Saline (PBS) 20mL is available for purchase with Certificate of Analysis confirming >98% HPLC purity. Every order Overnight and 2–3 day delivery available. For Research Use Only.
- What purity is your Phosphate Buffered Saline (PBS) 20mL?
- Rainbow Peptide's Phosphate Buffered Saline (PBS) 20mL is >98% pure, HPLC verified by an accredited third-party laboratory. A COA is included with every order.
- Is Phosphate Buffered Saline (PBS) 20mL safe for human use?
- No. Phosphate Buffered Saline (PBS) 20mL is strictly For Research Use Only (RUO). It is not intended for human consumption and is not intended to diagnose, treat, cure, or prevent any disease.
- How quickly does Phosphate Buffered Saline (PBS) 20mL ship?
- Overnight and 2–3 day delivery available. Ships in temperature-controlled packaging.
Third-Party Verified
Every Order Ships with a Certificate of Analysis
We don't just claim purity — we prove it. Every batch of Phosphate Buffered Saline (PBS) 20mL is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
- HPLC purity analysis — minimum threshold >98%
- Mass spectrometry — molecular weight confirmation
- Lot number traceable to your order
- Endotoxin limits verified — safe for cell-based assays
RAINBOW PEPTIDE LABS CERTIFICATE OF ANALYSIS
Product Phosphate Buffered Saline (PBS) 20mL
Lot # RP-00269-A
HPLC Purity >98.0% >98.5% PASS
Mass Spec (MW) Confirmed Confirmed PASS
Endotoxin <1 EU/mg <0.5 EU/mg PASS
Visual Inspection White powder White powder PASS
What Researchers Say
Verified purchases from active research labs and scientists
5.00
★★★★★
2 verified reviews MT
Reliable consistency batch to batch
Third order now. Consistent batch-to-batch results matter enormously in long-term research. Certificate of Analysis is detailed with mass spec data. Would not switch sources.
SK
Solid product, shipping was fast
Verified against our reference standards. Purity >98.2% by HPLC. Packaging was appropriate for temperature-sensitive peptides. Will re-order.
