Synonyms: 2-Amino-2-(hydroxymethyl)-1,3-propanediol; THAM; Tris base; Tris(hydroxymethyl)aminomethane; Trometamol
Formula: NH2C(CH2OH)3
Formula Weight: 121.14
CAS No.: 77-86-1
Purity: ≥99.9% (titration)
General description: 2222A 40% (w/w) solution in water is clear and colorless.
Protocols & Applications: Ensure correct concentrations of buffer solutions with the Buffer Calculator
Other Notes: Easily compare specifications for Trizma products with the Trizma specification table.
Legal Information: Trizma is a registered trademark of Sigma-Aldrich Co. LLC
Packaging: 1 kg in poly bottle
Packaging: 25, 100, 250, 500 g in poly bottle
Packaging: 5, 10, 25, 50 kg in poly drum
Abs.: A40%/290 ≤0.05
Assay: ≥99.9% (titration)
BP: 219-220°C/10 mmHg(lit.)
Cation Traces: heavy metals (as Pb): ≤2 ppm
Color: white
Description: aminopeptidase substrate
Form: crystalline
Impurities: ≤0.2% water (Karl Fischer)
MP: 167-172°C(lit.)
pH Range: 7 - 9
pKa (25°C): 8.1
Quality Level: ELITE
Useful pH Range: 7 - 9