Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99.0-101.0% (dry basis)

Supplier: Thermo Fisher Scientific

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

J22674-36 J22674-A7 J22674-A1

101170-162EA 106.68 USD

101170-162 101174-732 101170-160

Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99.0-101.0% (dry basis)

Tris(hydroxymethyl)aminomethane (TRIS, Trometamol)

Formula: NH₂C(CH₂OH)₃
MW: 121.14 g/mol
Boiling Pt: 219…220 °C/10 mm
Melting Pt: 171…172 °C
Storage Temperature: Ambient

MDL Number: MFCD00004679
CAS Number: 77-86-1
EINECS: 201-064-4
Merck Index: 14,9772

https://digitalassets.avantorsciences.com/adaptivemedia/rendition?id=11a03d1ab6b2c11b9a2c83f0a73fc4264cec0110&vid=5ce890cdf298a59a7900a07fee1c857a5e5e61e0&prid=web&clid=SAPDAM

Specification Test Results

Assay (Dry Basis)	99.0 - 101.0%
Assay Absorbance (250 nm, 1 M, 1 cm)	≤0.1
Assay Absorbance (290 nm, 40%, 1 cm)	≤0.2
Loss on Drying	≤1%
pH (5%, H₂O)	10.0 - 11.5
Identification (FTIR)	Conforms
Residue on Ignition	≤0.1%
Insoluble Material	≤0.005%
Heavy Metals (Pb)	≤5 ppm
Iron (Fe)	≤5 ppm
pKa (20 °C)	8.30 ±0.15

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