HEPES BUFFER For tissue culture

HEPES BUFFER For tissue culture

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Category: Biological Buffers

Description
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Description

Good zwitterionic buffer substance suitable for tissue culture work pka – 7.5, Useful pH range 6.8 – 8.2
4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid; N-(2-Hydroxyethyl)piperazine-N’-(2-ethanesulfonic acid)

Article No.	04040	Grade	For tissue culture
Purity	99%	CAS No.	7365-45-9
Molecular Formula	C₈H₁₈N₂O₄S	Molecular Weight	238.30
H.S. Code	2933.5990	Shelf Life	60 Months

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Physical Properties

Physical state at 20 °C	Solid	Colour	White powder
pH value	5.0 – 6.5 at 238 g/l at 25 °C	Melting point/ Freezing point [°C]	234 °C
Solubility in water [% weight]	Soluble in water

Specifications

Appearance	White powder
Assay	Min 99%
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 1.0%

Packings

5 g	00005
25 g	00025
100 g	00100
500 g	00500

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