Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99,8-100,1 ACS, Analytical reagent Buffer_substance, Rankem®

Supplier: RANKEM

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

T0351 T0352 T0353 T0354
RANKT0351EA 1880.34 INR
RANKT0351 RANKT0352 RANKT0353 RANKT0354
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99,8-100,1 ACS, Analytical reagent Buffer_substance, Rankem®
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol)

TRIS buffer. High purity reagent that meet or exceed the ACS reagent specifications.


  • Batch-to-batch consistency
  • Tested for heavy metals
  • Suitable for advanced chemical testing
  • Available in various pack size


Description: White crystalline powder to needles.

Formula: NH₂C(CH₂OH)₃
MW: 121.14 g/mol
Boiling Pt: 357 °C (1013 hPa)
Melting Pt: 169...172 °C
Density: 1.328 g/cm³ (20 °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

Guarantee Analysis .
Assay(Dry Basis)(C4H11NO3) 99.80 --> 100.10 %
Identity (IR) Conforms
Maximum Limits Of Impurities .
Insoluble Matter Max. 0.00500 %
Residue After Ignition Max. 0.050 %
Water ( By KF) Max. 0.500 %
Chloride (Cl) <=0.001%
Heavy Metal (As Pb) <=0.0005%
Iron (Fe) <=0.0005%
Sulphate (SO4) <=0.005%
Absorbance (40%;1cm;water at 290nm) Max. 0.200 AU


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