Polysorbate 20 (PS20) 1 %
1 % polysorbate 20 surfactant stock to prevent protein aggregation and surface adsorption. · GMP catalogue product · CT-00211
Polysorbate 20 (PS20) 1 % is a defined surfactant stock for downstream processing. Added in UF/DF and final formulation, it protects proteins from aggregation and interface/adsorption stress. As a GMP-grade stock it is applied across monoclonal antibodies, vaccines, mRNA and cell & gene therapy.
One GMP quality. Polysorbate 20 (PS20) 1 % is a GMP-grade catalogue product (CT-00211), manufactured by PAN-Celltech and released against a defined quality-control panel on every lot.
Why
- Protects protein at interfaces – Prevents aggregation and adsorption.
- Concentrated 1 % stock – Easy to dose into the formulation.
- GMP grade – Catalogue GMP quality, released per lot.
- Multi-application – Formulation surfactant across platforms.
Specification
| Composition | 1 % (w/v) polysorbate 20 |
| Form | Surfactant stock |
| Storage | 15-25 °C (room temperature); protect from light |
| Grade | GMP |
Ordering
| Grade | Article No. | Pack size |
|---|---|---|
| GMP | CT-00211 | 100 ml |
Other pack sizes are available on request.
Beyond compendial – on request. Every PAN downstream buffer is also available in a beyond-compendial version produced with WFI Beyond – Water for Injection engineered beyond the Ph. Eur./USP monograph – for the most demanding endotoxin and purity requirements. Available on request.
In the process – by application (upstream & downstream)
Polysorbate 20 (PS20) 1 % is used at the following process steps across the biologics platforms it supports:
Monoclonal antibodies
- UF/DF and final formulation – anti-aggregation / anti-adsorption surfactant.
Vaccines
- Formulation – surfactant.
mRNA
- LNP / final formulation – surfactant.
Cell & gene therapy
- Vector formulation – surfactant.
Frequently asked questions
What is Polysorbate 20 (PS20) 1 % used for?
It is a surfactant stock added in formulation to protect proteins from aggregation and interface stress.
Is it multi-application?
Yes, it is used across monoclonal antibodies, vaccines, mRNA and cell & gene therapy downstream.
One partner across every application. The same GMP downstream buffers support monoclonal antibodies, vaccines, mRNA and cell & gene therapy – explore the full GMP-grade catalogue or use the Smart Product Search.
Related: WFI Quality Water (CT-991500) · DPBS w/o Ca & Mg (CT-36500) · GMP-Grade Products

