Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99.8-100.1% (dry basis), Ultrapure for molecular biology
Supplier: Thermo Fisher Scientific
Certificates
About this item
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
CAS Number:77-86-1
:
Formula:NH₂C(CH₂OH)₃
MDL Number:MFCD00004679
:121.14 g/mol
Merck Index:14,09772
Boiling Pt:219…220 °C (10 mmHg)
Melting Pt:171…172 °C
Density:1.328 g/cm³ (20 °C)
EINECS:201-064-4
:GHS07
Storage Temperature:Ambient
Specifications
- Environmentally Preferable:
Specifications
Specification Test Results
- Assay (unspecified) - Dry Basis:99.8 - 100.1%
- Assay (unspecified) - Absorbance (250 nm, 1 M, 1 cm):≤0.1
- Assay (unspecified) - Absorbance (290 nm, 40%, 1 cm):≤0.2
- Identification (FTIR):Conforms
- Residue on Ignition:≤0.1%
- Insoluble Material:≤0.005%
- Water Content (Karl Fischer Titration):≤1%
- Loss on Drying:≤1%
- pH (5%, H₂O):10.0 - 11.5
- pKa (20 °C):8.30 ±0.15
- Arsenic (As):≤1 ppm
- Barium (Ba):≤1 ppm
- Cadmium (Cd):≤1 ppm
- Calcium (Ca):≤1 ppm
- Iron (Fe):≤1 ppm
- Lead (Pb):≤1 ppm
- Magnesium (Mg):≤1 ppm
- Manganese (Mn):≤1 ppm
- Zinc (Zn):≤1 ppm
Specification Test Results
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