Tris-HCl buffer (1mol/L, pH8.5, RNase free) (BZ215)

Tris-HCl buffer (1mol/L, pH8.5, RNase free) (BZ215)



Name Tris-HCl buffer (1mol/L, pH8.5, RNase free)

Specification 100mL | 500mL

Storage Store at room temperature, valid for 1 year

Product Introduction 

Tris (Trishydroxymethylaminomethane) is a weak base with a molecular formula of C4H11NO3, a relative molecular weight of 121.14, and a pKa of 8.1 at 25°C. The effective buffer range of Tris buffer is between pH 7.0 and 9.2. The pH of the aqueous solution of Tris base is around 10.5. Generally, hydrochloric acid is added to adjust the pH to the desired value to obtain a buffer of this pH. It is often used as a biological buffer, and its pH value is 6.8, 7.4, 8.0, 8.8, and its pH value varies greatly with temperature. Generally speaking, for every 1°C increase in temperature, the pH drops by 0.03.

Tris-HCl buffer (1mol/L, pH8.5, RNase free) is a pH buffer, prepared with imported Tris, and then autoclaved at 15psi, often used in RNA-related experiments.


1) It is irritating to human body, please pay attention to proper protection.

2) For your safety and health, please wear lab coats and disposable gloves for operation.

Tris, or tris(hydroxymethyl)aminomethane, or known during medical use as tromethamine or THAM, is an organic compound with the formula (HOCH2)3CNH2. It is extensively used in biochemistry and molecular biology as a component of buffer solutions such as in TAE and TBE buffers, especially for solutions of nucleic acids.

“Tris” is a chemical compound used as a buffer. The full name is tris(hydroxymethyl)aminomethane. Tris has the ability to absorb counter ions (+H and -OH) so as to help keep the solution that they are in at a stable pH level. When the pH of Tris is set using HCl (hydrochloric acid) the buffer is called Tris HCl.