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E9502

Sigma-Aldrich

EPPS

≥99.5% (titration)

Synonym(s):

4-(2-Hydroxyethyl)-1-piperazinepropanesulfonic acid, 4-(2-Hydroxyethyl)piperazine-1-propanesulfonic acid, N-(2-Hydroxyethyl)piperazine-N′-(3-propanesulfonic acid), HEPPS

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About This Item

Empirical Formula (Hill Notation):
C9H20N2O4S
CAS Number:
16052-06-5
Molecular Weight:
252.33
Beilstein:
3957385
EC Number:
240-198-8
MDL number:
MFCD00006160
UNSPSC Code:
12161700
PubChem Substance ID:
24894698
NACRES:
NA.25

Quality Level

400

Assay

≥99.5% (titration)

form

powder

pH

7.3-8.7

useful pH range

7.3-8.7

pKa (25 °C)

8.0

pKa 

8

mp

237-239 °C (lit.)

solubility

H2O: 25 g + 50 mL, clear, colorless

λmax

A290 at ≤0.1 (C=33% w/w)

application(s)

diagnostic assay manufacturing

SMILES string

OCCN1CCN(CCCS(O)(=O)=O)CC1

InChI

1S/C9H20N2O4S/c12-8-7-11-5-3-10(4-6-11)2-1-9-16(13,14)15/h12H,1-9H2,(H,13,14,15)

InChI key

OWXMKDGYPWMGEB-UHFFFAOYSA-N

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Application

EPPS has been used:
  • to verify the effect of pH variation on the proteolytic activity of the posterior midgut (PMG) contents and anterior midgut (AMG) tissue homogenate
  • to prepare a destaining buffer to destain intensely stained gel pieces
  • to prepare digestion buffer for in-gel enzymatic digestion
  • to reconstitute the digested peptides for the processing of brain-derived extracellular vesicle (EV) proteins and 16-plex isobaric tandem mass tag (TMT) peptide labeling

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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HEPES ≥99.5% (titration)

Sigma-Aldrich

H3375

HEPES

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