Pierce™ TCEP-HCl

Catalog number: 20491

Thermo Scientific™  Related applications: Protein Labeling & Crosslinking

Error loading your content!

  Catalog number
Select a plan
Unit size
Price ({{currency}}) Your price ({{currency}}) Availability Qty
{{product.sku}} {{product.sku}}
also known as {{product.formattedSku}} 
{{subscriptionDetails.selectedRatePlan.billingPeriod}} {{subscriptionDetails.selectedRatePlan.billingPeriod}} {{product.availability.message}}
Pro add-ons

Your on-site stock

›› {{supplyCenter.scName}}({{scProduct.stockOnHand}} In stock)
›› {{supplyCenter.scName}}(Out of stock)
›› {{supplyCenter.scName}}
This item is not currently available on-site. Depending on your Supply Center settings you may be able to add the item to cart above else use the Order Non-Stocked Items' tab on the Supply Center home page.
Back to top


Thermo Scientific Pierce TCEP-HCl is pure, crystalline Tris(2-carboxyethyl)phosphine hydrochloride, a thiol-free compound that is highly effective at reducing protein and peptide disulfide bonds, as well as being odorless and stable.

Features of TCEP-HCl:

Odorless—Unlike DTT or BME, TCEP is odor-free, so it can reduce proteins conveniently on the bench; contributes to a healthier lab environment
Specific—selective and complete reduction of even the most stable water-soluble disulfides over a wide pH range
Simple—effective reduction at room temperature and pH 5 in less than five minutes
Stable—it's inherent stability and resistant to air oxidation eliminates the need for any special precautions while handling or storing; non-volatile and non-reactive toward other functional groups found in proteins
Efficient—For most applications, 5 to 50 mM TCEP provides sufficient molar excess to effectively reduce peptide or protein disulfide bonds within a few minutes at room temperature.
Compatible—With TCEP, removal of the reducing agent is not necessary prior to most applications, (e.g. histidine-tagged protein purification, maleimide conjugations).

Considerations for use of TCEP:
• TCEP is generally very soluble in aqueous buffers at nearly any pH. Therefore, working concentrations and 10X stock solutions may be readily prepared in most aqueous buffers.
• TCEP is stable in aqueous, acidic, and basic solutions. When TCEP is dissolved directly in water, the resulting pH is approximately 2.5.
• TCEP is not particularly stable in phosphate buffers, especially at neutral or alkaline pH. Therefore, if TCEP is to be used in PBS buffers, prepare the working solution immediately before use.
• TCEP may be used as a substitute for DTT or 2-mercaptoethanol (2-ME) in sample loading buffer for SDS-PAGE; use a final concentration of 50 mM TCEP.
• Because TCEP is charged in solution, it is not compatible for use in isoelectric focusing.

Related Products
Pierce™ Premium Grade TCEP-HCl
Bond-Breaker™ TCEP Solution, Neutral pH
Pierce™ Immobilized TCEP Disulfide Reducing Gel
For Research Use Only. Not for use in diagnostic procedures.


Product Size: 10 g

Contents & storage

Upon receipt store at room temperature in sealed container to prevent oxidation. Product shipped at ambient temperature.


Manuals & protocols

Recommended products