Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99+% Biochemistry

Supplier: Thermo Fisher Scientific
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Synonyms: 2-Amino-2-(hydroxymethyl)propane-1,3-diol(tris), Tromethamine, Tris(hydroxymethyl)methylamine, 2-Amino-2-(hydroxymethyl)propane-1,3-diol, 2-Amino-2-(hydroxymethyl)-1,3-propanediol, Trizma(R) base, TRIS base, THAM

140500010 140500025 140505000 140500100
ACRO140500010EA 289 GBP
ACRO140500010 ACRO140500025 ACRO140505000 ACRO140500100
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99+% Biochemistry
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol)
Formula: NH₂C(CH₂OH)₃
MW: 121.14 g/mol
Boiling Pt: 219…220 °C (10 mmHg)
Melting Pt: >168.5 °C
Storage Temperature: Ambient
MDL Number: MFCD00004679
CAS Number: 77-86-1
EINECS: 201-064-4
Merck Index: 13,09842
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Specification Test Results

Appearance White Crystalline powder or crystals and/or chunks
Infrared spectrum Conforms
Melting point 168 to 171 °C
Water ≤0.5 % (K.F.)
UV at 290 nm A: ≤0.2
Residue after ignition ≤0.1 %
pH 10.0 to 11.5 (5 % in water)
Titration with HClO4 ≥99.0 %
Color of solution ≤25 APHA (20 % in water)
Heavy metals (as Pb) ≤5 ppm


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