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T1503

Sigma-Aldrich

Trizma® base

Primary Standard and Buffer, ≥99.9% (titration), crystalline

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Synonym(s):
2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Tris(hydroxymethyl)aminomethane, Trometamol
Linear Formula:
NH2C(CH2OH)3
CAS Number:
Molecular Weight:
121.14
Beilstein:
741883
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

description

aminopeptidase substrate

Assay

≥99.9% (titration)

form

crystalline

pH

10.5-12

useful pH range

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.)

mp

167-172 °C (lit.)

solubility

methanol: soluble 26 mg/mL at 25 °C
ethylene glycol: soluble 79.1 mg/mL at 25 °C
water: soluble (678 g/l at 20 °C)

absorption

≤0.05 at 290 nm at 40%

application(s)

diagnostic assay manufacturing

SMILES string

NC(CO)(CO)CO

InChI

1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2

InChI key

LENZDBCJOHFCAS-UHFFFAOYSA-N

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General description

Tris(hydroxymethyl)aminomethane, commonly known as Trometamol, Tris base, or Trizma® base, serves a pivotal role in diverse research applications as a biological buffer. Its optimal pKa of 8.1 makes it a preferred choice for formulating buffers like Tris-acetate-EDTA (TAE) and Tris-borate-EDTA (TBE), ensuring the maintenance of pH within the physiological range (pH 7 - 9), applicable to a wide spectrum of living organisms. Despite its utility, researchers need to exercise caution in protein studies, as Tris has the potential to interfere with the activity of specific enzymes.

Tris base may find application as basimetric standard, independently as a buffer and as a crucial component in mixed buffer formulations, including Tris-EDTA (TE) buffer, TAE buffer, TBE buffer, among others. Its attributes include purity, essential stability, and a relative non-hygroscopic nature, making it a dependable choice in laboratory settings. In these environments, Tris base is indispensable for preparing buffers compatible with biological fluids and serves as a standard pH solution. It facilitates various laboratory procedures such as lactate dehydrogenase assays, in situ hybridization, and protein extraction from cells. The versatility of Tris base extends to cell biology, biochemistry, and protein research contributing significantly to studies involving cell membrane permeability and buffer preparation.

Application

Trizma® base has been used:
  • as a component of H buffer (cell dissociation buffer)
  • for washing and saturation of wells in double sandwich ELISA immunoenzymatic technique
  • as an assay buffer for reconstitution of extracted and dried protein samples
  • to prepare Tris-HCl buffer that is used to stabilize proteins
  • as a buffer to extract carotenoid from tubers
  • as a component of sample buffer during protein extraction prior to western blotting
  • as a component of sample buffer for sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)
  • to prepare simulated body fluid (SBF) for calcium phosphate (CaP) resorption assay
  • as a buffer for polydopamine (PDA) deposition on stainless steel (SS) substrate

Features and Benefits

  • Efficient buffering within the pH range of 7 - 9 with a pKa of 8.1 (25 °C)
  • Tested to confirm low levels of heavy metal contamination, ensuring suitability for various applications
  • Can be used in Cell Biology, and Biochemical research

Other Notes

The pH values of all buffers are temperature- and concentration-dependent. For Tris buffers, pH increases about 0.03 unit per °C decrease in temperature, and decreases 0.03-0.05 unit per ten-fold dilution.
For precise applications, use a carefully calibrated pH meter with a glass/calomel combination electrode.
For additional information on our range of Biochemicals, please complete this form.

Legal Information

Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany

suggested gloves for splash protection

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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  1. What is the pH of Trizma® base, T1503?

    The pH of a 0.1 M aqueous solution of Trizma base will have a pH of approximately 10.4.

  2. What type of electrode should I use to measure the pH of Trizma® base T1503?

    We recommend the use of glass-calomel electrodes for use with Trizma base solutions through a pH range of 0-12 and a temperature range of -5 °C to 80 °C. Silver/silver chloride reference electrodes are not recommended for use with Trizma solutions that contain proteins.

  3. How can I use T1503 to make a Trizma® buffered solution?

    Trizma base may be used directly in preparing a buffer by adjusting the pH with a 0.1 to 1.0 M HCl or blended with Trizma hydrochloride.

  4. Can Product T1503, Trizma® base be used as a standard?

    Trizma base meets the requirements for a primary basimetric standard.

  5. Can I autoclave solutions that contain Product T1503, Trizma® base?

    Yes, Trizma buffered solutions may be autoclaved.  

  6. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  7. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

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F Foudrinier et al.
Journal of clinical microbiology, 41(4), 1681-1686 (2003-04-12)
The clinical value of immunoenzymatic (enzyme-linked immunosorbent assay) detection of anti-Toxoplasma immunoglobulin E (IgE) was assessed by studying 2,036 sera from 792 subjects, comprising seronegative controls and subjects with acute, active, reactivated, or congenital toxoplasmosis. Included were nonimmunized adults; pregnant
Tribological performance of polydopamine + Ag nanoparticles/PTFE thin films
Choudhury D, et al.
Tribology International, 144 (2020)
Biochemical isolation of insoluble tau in transgenic mouse models of tauopathies.
Sigurdsson E.M., Calero M., and Gasset M, (eds.)
Amyloid Proteins: Methods and Protocols, 473-491 (2012)
Variation of anthocyanin and carotenoid contents and associated antioxidant values in potato breeding lines.
Brown CR et al
J. Am. Soc. Hort. Sci., 130(2), 174-180 (2005)
Rune Ehrenreich Kuhre et al.
Peptides, 55, 52-57 (2014-02-04)
XXX: Measurements of plasma concentrations of the incretin hormone GLP-1 are complex because of extensive molecular heterogeneity. This is partly due to a varying and incompletely known degree of C-terminal amidation. Given that virtually all GLP-1 assays rely on a

Protocols

To measure carboxypeptidase A activity, hippuryl-L-phenylalanine is used in a continuous spectrophotometric rate determination assay at 254 nm. Carboxypeptidase A hydrolyzes peptide bonds at C-terminal residues.

To measure achromopeptidase activity, this procedure uses bacterial cells and a turbidimetric rate assay. Turbidity is measured at 600 nm using a spectrophotometer.

To measure chloramphenicol acetyltransferase activity, this procedure uses DTNB and coenzyme A. The reaction of DTNB with the –SH group on CoA results in a colorimetric increase at 412 nm.

To measure luciferase activity, an assay that measures light emission with a luminometer is used. Firefly luciferase is used for detection and quantitation of ATP and as a reporter for genetic function.

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