Tris Base， CAS NO.77-86-1

Tris Base Chemical Properties
Melting point     167-172 °C(lit.)
Boiling point     219-220 °C10 mm Hg(lit.)
density     1,353 g/cm3
vapor pressure     0.0267 hPa (20 °C)
refractive index     1.4170 (estimate)
Fp     219-220°C/10mm
storage temp.     20-25°C
solubility     H2O: 4 M at 20 °C, clear, colorless
form     crystalline
color     white
PH    10.5-12.0(4 m in water, 25 °C)
PH Range    7 - 9
pka    8.1(at 25℃)
Water Solubility     550 g/L (25 ºC)
λmax    λ: 260 nm Amax: 0.10 
λ: 280 nm Amax: 0.08
Sensitive     Hygroscopic
Merck     14,9772
BRN     741883
Stability:    Stable. Incompatible with bases, strong oxidizing agents. Protect from moisture.
InChIKey    LENZDBCJOHFCAS-UHFFFAOYSA-N
CAS DataBase Reference    77-86-1(CAS DataBase Reference)
NIST Chemistry Reference    1,3-Propanediol, 2-amino-2-(hydroxymethyl)-(77-86-1)
EPA Substance Registry System    Tris(hydroxymethyl)aminomethane (77-86-1)

Tris Base Chemical Properties
Melting point     167-172 °C(lit.)
Boiling point     219-220 °C10 mm Hg(lit.)
density     1,353 g/cm3
vapor pressure     0.0267 hPa (20 °C)
refractive index     1.4170 (estimate)
Fp     219-220°C/10mm
storage temp.     20-25°C
solubility     H2O: 4 M at 20 °C, clear, colorless
form     crystalline
color     white
PH    10.5-12.0(4 m in water, 25 °C)
PH Range    7 - 9
pka    8.1(at 25℃)
Water Solubility     550 g/L (25 ºC)
λmax    λ: 260 nm Amax: 0.10 
λ: 280 nm Amax: 0.08
Sensitive     Hygroscopic
Merck     14,9772
BRN     741883
Stability:    Stable. Incompatible with bases, strong oxidizing agents. Protect from moisture.
InChIKey    LENZDBCJOHFCAS-UHFFFAOYSA-N
CAS DataBase Reference    77-86-1(CAS DataBase Reference)
NIST Chemistry Reference    1,3-Propanediol, 2-amino-2-(hydroxymethyl)-(77-86-1)
EPA Substance Registry System    Tris(hydroxymethyl)aminomethane (77-86-1) 

Tris Base Basic information
description Chemical Properties Uses of Biology Uses
Product Name:    Tris Base
Synonyms:    OmniPur TRIS -CAS 77-86-1 - Calbiochem;Tris Base, Molecular Biology Grade - CAS 77-86-1 - Calbiochem;Tris Base, ULTROL Grade - CAS 77-86-1 - Calbiochem;Tris Buffer, 1.0 M, pH 8.0, Molecular Biology Grade - CAS 77-86-1 - Calbiochem;Tris Buffer, 100 mM, pH 7.4, Molecular Biology Grade - CAS 77-86-1 - Calbiochem;Tris(Hydroxymethyl)aminomethane (Trometamol) high purity;1-[ethyl(hydroxymethyl)amino]ethane-1,2-diol;TRIS,Tromethamine, Trometamol
CAS:    77-86-1
MF:    C4H11NO3
MW:    121.14
EINECS:    201-064-4

Mol File:    77-86-1.mol