1.08382

Tris Base

solid, ACS reagent, reag. Ph. Eur., GR for analysis buffer substance

• Synonym(s): Tris Base, 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: 741883
• MDL number: MFCD00004679
• UNSPSC Code: 12161703
• EC Index Number: 201-064-4
• NACRES: NA.05

Properties

• product name: Tris(hydroxymethyl)aminomethane, GR for analysis buffer substance ACS,Reag. Ph Eur
• grade: ACS reagent
• Quality Level: 200
• Agency: reag. Ph. Eur.
• vapor pressure: 0.0267 hPa ( 20 °C)
• form: solid
• potency: >5000 mg/kg LD₅₀, oral (Rat); >5000 mg/kg LD₅₀, skin (Rat)
• pH: 10.2-10.6 (20 °C, 6 g/L in H₂O)
• useful pH range: 7-9
• pKa (25 °C): 8.1
• bp: 219-220 °C/10 mmHg (lit.); 219-220 °C/13.3 hPa
• mp: 167-172 °C (lit.)
• solubility: 678 g/L
• density: 1.35 g/cm³ at 23 °C
• bulk density: 840 kg/m³
• storage temp.: 15-25°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

Biological buffer substance
Tris is widely used as a biological buffer substance in the pH range of 7-9. For example it is used for the freezing of proteins. The grade conforms precisely with the Reag. Ph. Eur. requirements.

GR for analysis buffer substance ACS,Reag. Ph Eur

Application

Tris(hydroxymethyl)aminomethane GR for analysis buffer substance ACS,Reag. Ph Eur. CAS 77-86-1, EC 201-064-4, chemical formula H₂NC(CH₂OH)₃.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable