Bis(2-hydroxyethyl)amino tris(hydroxymethyl)methane (BIS-TRIS) ≥99% (by titrimetric analysis), white powder
Supplier: MP Biomedicals
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Warning
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Synonyms:
2,2-Bis(hydroxymethyl)-2,2',2''-nitrilotriethanol, Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (BIS-TRIS), 2-(Bis(2-hydroxyethyl)amino)-2-(hydroxymethyl)propane-1,3-diol, 2-[Bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol
Bis-Tris is zwitterionic buffer, an amine buffer similar to Tris. It exhibits only a very small shift in dissociation constant with respect to temperature. Hydrochloric acid can be used to adjust pH for a Bis-Tris buffer to the desired pH.
- Presentation: White Powder
- Extinction Coefficient (E1%): 259 nm = 10. 277 nm = 10 (water)
- pKa: (25 °C) 6.5
- EM (water): 259 nm = 10; 277 nm = 10
- Soluble in water (1 M - clear, colorless solution).
- Storage temperature: Room Temperature
pH: Useful pH range 5.8-7.2
Formula:
C₈H₁₉NO₅ MW: 209,24 g/mol Melting Pt: 101…106 °C Storage Temperature: Ambient |
MDL Number:
MFCD00002853 CAS Number: 6976-37-0 |
Specification Test Results
Identity Test | Passes |
Purity | ≥99% |
FTIR | Conforms to Standard |
pH (1% aq soln) | 9-10 |
Moisture | ≤1% |
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