T6791

Trizma^® base

BioXtra, pH 10.5-12.0 (1 M in H₂O), ≥99.9% (titration)

• Synonym(s): 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Tris(hydroxymethyl)aminomethane, Trometamol
• Linear Formula: NH₂C(CH₂OH)₃
• CAS Number: 77-86-1
• Molecular Weight: 121.14
• Beilstein: 741883
• EC Number: 201-064-4
• MDL number: MFCD00004679
• PubChem Substance ID: 24900405
• NACRES: NA.25

Properties

• description: aminopeptidase substrate
• Quality Level: 400
• product line: BioXtra
• Assay: ≥99.9% (titration)
• form: crystalline
• impurities: ≤0.005% Insoluble matter
• ign. residue (900 °C): ≤0.01% (as SO₄)
• loss: ≤0.5% loss on drying, 110°C
• pH: 10.5-12.0 (1 M in H₂O)
• useful pH range: 7-9
• pKa (25 °C): 8.1
• bp: 219-220 °C/10 mmHg (lit.)
• mp: 167-172 °C (lit.)
• solubility: H₂O: 1 M, colorless
• anion traces: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Al: ≤0.0005%; As: ≤0.0001%; Ba: ≤0.0005%; Bi: ≤0.0005%; Ca: ≤0.001%; Cd: ≤0.0005%; Co: ≤0.0005%; Cr: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; K: ≤0.005%; Li: ≤0.0005%; Mg: ≤0.0005%; Mn: ≤0.0005%; Mo: ≤0.0005%; Na: ≤0.005%; Ni: ≤0.0005%; Pb: ≤0.0005%; Sr: ≤0.0005%; Zn: ≤0.0005%
• absorption: ≤0.020 at 280 in H₂O at 1 M; ≤0.025 at 260 in H₂O at 1 M
• SMILES string: NC(CO)(CO)CO
• application(s): diagnostic assay manufacturing
• InChI: 1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
• InChI key: LENZDBCJOHFCAS-UHFFFAOYSA-N

Description

Other Notes

Easily compare specifications for Trizma products with the Trizma specification table.

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.

Legal Information

Trizma is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

• 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