StockOptions Tris 20 pH 8.9, 185 ml

– 1.0 M concentrated stocks
– 0.1 unit increments for fine tuning pH
– Available in pH 7.0 to 9.0
– 185 ml volume
– Sterile filtered
– Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)

HR2-900-**
** Refers to the reagent number in the kit.
For example, reagent number 1 = HR2-900-01

1.0 M Tris (Tris titrated to indicated pH using HCl)
Synonym: Trizma base or 2-Amino-2-(hydroxymethyl)-1,3-propanediol or THAM or Tris base or Tris(hydroxymethyl)aminomethane or Trometamol
C4H11NO3
NH2C(CH2OH)3
Mr 121.14
CAS Number [77-86-1]
EC Number 201-064-4
Beilstein Registry Number 741883
Merck 14,9772
RTECS TY2900000
MDL Number MFCD00004679
PubChem Substance ID 24889854
Purity 99.8 – 100.1%
pKa = 8.1 at 25°C
Useful pH range of Tris = 7.0 – 9.0

Insoluble Matter 0.005% max
DNase None Detected
RNase None Detected
Protease None Detected
Heavy Metals 5 ppm max
As = 5 ppm max
Ca = 5 ppm max
Cu = 5 ppm max
Fe = 5 ppm max
Pb = 5 ppm max
Mg = 5 ppm max

Use StockOptions Tris kit (HR2-100) for a set of 21 Tris reagents titrated to pH 7.0 to 9.0 in 0.1 pH increments.


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