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BIS-TRIS Molecular Biology

2,2-Bis(hydroxymethyl)-2,2',2-nitrilotriethanol, 2-Bis(2-hydroxyethyl)amino-2-(hydroxymethyl)-1,3-propanediol; Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane

COAs

Packings

25 g (00025)

100 g (00100)

1PW1200060 1PW1200200
Print friendly version
Article No. 02186 Grade Molecular Biology
Purity 99% CAS No. 6976-37-0
Molecular Formula C8H19NO5 Molecular Weight 209.2
H.S. Code 2922.1990 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White crystalline
Odour Odorless pH value 9.5 - 11
Melting point/ Freezing point [°C] 102 - 103 °C Solubility in water [% weight] 209.2 g/l at 20 °C

Specifications

Description White crystalline powder Assay (by HClO4 titration) Min 99%
Insoluble matter Passes filter test Residue on ignition Max 0.3%
Loss on drying (at 20°; vacuum) Max 0.5% Solubility (1 M in water) Complete, colorless
pH (2% solution in water) 9.4 - 9.8 UV absorbance (at 280 nm; 10%; 1 cm; in water) Max 0.1
Chloride (Cl) Max 0.005% Sulphate (SO4) Max 0.01%
Iron (Fe) Max 0.001% Lead (Pb) Max 0.001%

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
 Signal Word: Warning
 Hazardous Statement: H315-H319-H335
 Precaution Statement: P261-P305 + P351 + P338
Revision Date: 10-Aug-2022

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