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00409

BES buffer 99% For Biochemistry

N,N-bis (2-hydroxyethyl) 2-aminoethane sulphonic acid

CAS : 10191-18-1

HS Code : 2922.19900

Molecular Formula : C6H15NO5S

Molecular Weight : 213.25

MSDS

Product Datasheet

Shelf Life : 60 Months

Sample COA COA

Physical Properties

Physical state at 20 °C
Solid
 Colour
White powder
pH value
2.5- 5.0
 Melting point/ Freezing point [°C]
152 - 154 °C
Solubility in water [% weight]
213.3 g/l at 20 °C

Specification

Appearance
White powder
 Assay (alkalimetric)
Min 99.0%
Identity (IR)
Passes test
 UV absorbance (at 250 nm; 5%; 1 cm; water)
Max 0.05%
Chloride (Cl)
Max 0.005%
 Sulphate (SO4)
Max 0.005%
Heavy metal (as Pb)
Max 0.0005%
 Sodium (Na)
Max 0.01%
Loss on drying (at 105°C)
Max 0.5%
 Biological buffer, pKa at 20°C
7.15

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338