648311

Tris Base

≥99% dry basis (titration), crystalline solid, pH 10.3-11.3, Ultrol^® Grade

• Synonym(s): Tris(hydroxymethyl)aminomethane, tris(Hydroxymethyl)aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Trometamol
• Linear Formula: NH₂C(CH₂OH)₃
• CAS Number: 77-86-1
• Molecular Weight: 121.14
• Beilstein/REAXYS Number: 741883
• MDL number: MFCD00004679
• UNSPSC Code: 12161705
• NACRES: NA.25

Properties

• product name: Tris Base, ULTROL^® Grade, ≥99% dry basis (titration), useful in pH range 10.3-11.3
• Quality Level: 100
• assay: ≥99% dry basis (titration)
• form: crystalline solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze
• color: white
• useful pH range: 7-9
• pKa (25 °C): 8.1
• bp: 219-220 °C/10 mmHg (lit.)
• mp: 167-172 °C (lit.)
• solubility: water: 1 M
• cation traces: heavy metals: ≤5 ppm
• shipped in: ambient
• storage temp.: 10-30°C
• 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

Description

General description

Absorbance (1.0 M, H₂O, 260 nm): <0.05.

Useful in the pH range of 10.3-11.3. Has a pK_a of 8.1 at 25°C.

Widely used as a biological buffer (absorbance: <0.05 at 260 nm, 1.0 M, H₂O). A 1.0 M solution in H₂O has a pH range of 10.3-11.3 and a pK_a of 8.3 at 20°C.

Application

• Development of an Antigen Capture Lateral Flow Immunoassay for the Detection of Burkholderia pseudomallei.: This study uses Tris Base in the development of a lateral flow immunoassay for detecting Burkholderia pseudomallei, enhancing diagnostic capabilities in clinical microbiology (Nualnoi et al., 2024).

Warning

Toxicity: Irritant (B)

Legal Information

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

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable