William's E Medium, no phenol red This product, and/or its packaging, incorporates one or more environmental/green features. Click on this icon to learn more.

Catalog number:  A1217601

Related applications:

Pharma & Biopharma

| Mammalian Cell Culture

| Primary Cell Culture

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William's E Medium was originally developed by Williams and Gunn as reduced serum-supplemented medium for long-term cell cultures of adult rat liver epithelial cells. Gibco® William's E Medium can also be used for growing primary hepatocyte cells of different species as well as human derived HepaRG cells.

This William's E Medium is modified as follows:
• Phenol Red
• L-glutamine

The complete formulation is available.

Gibco William's E Medium is a modification of earlier media that has been enriched in amino acids and double the glucose. William's E Medium contains unique ingredients, including zinc, iron, manganese, non-essential amino acids, the reducing agent glutathione and the lipid methyl linoleate

Dual-Site cGMP Manufacturing
For supply chain continuity, we manufacture Gibco William's E Medium at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

William's E Medium contains no proteins or growth factors. Therefore, William's E Medium requires supplementation, commonly with 5-10% Fetal Bovine Serum (FBS). William's E Medium uses a sodium bicarbonate buffer system (2.2 g/L) and therefore requires a 5-10% CO2 environment to maintain physiological pH.
For Research Use Only. Not for use in diagnostic procedures.


Concentration Ratio: 1 :1
Green Features: Sustainable packaging
Shipping Condition: Room Temperature
Sodium Pyruvate Additive: Sodium Pyruvate
Form: Liquid
Glutamine: No Glutamine
Phenol Red Indicator: No Phenol Red
Concentration: 1 X
Sterility: Sterile

Contents & storage

Store in refrigerator (2–8°C) and protect from light.