CHES (buffer)

N-Cyclohexyl-2-aminoethanesulfonic acid
Names
	IUPAC name 2-(Cyclohexylamino)ethanesulfonic acid
	Other names N-Cyclohexyltaurine, CHES
Identifiers
CAS Number	103-47-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:44302;
ChemSpider	60260 ;
DrugBank	DB03309 ;
ECHA InfoCard	100.002.832
MeSH	2-(N-cyclohexylamino)ethanesulfonic+acid
PubChem CID	66898;
UNII	71X53V3RZ1 ;
CompTox Dashboard (EPA)	DTXSID7059274 ;
	InChI InChI=1S/C8H17NO3S/c10-13(11,12)7-6-9-8-4-2-1-3-5-8/h8-9H,1-7H2,(H,10,11,12) Key: MKWKNSIESPFAQN-UHFFFAOYSA-N ; InChI=1/C8H17NO3S/c10-13(11,12)7-6-9-8-4-2-1-3-5-8/h8-9H,1-7H2,(H,10,11,12) Key: MKWKNSIESPFAQN-UHFFFAOYAH;
	SMILES O=S(=O)(O)CCNC1CCCCC1;
Properties
Chemical formula	C8H17NO3S
Molar mass	207.287 g/mol
Acidity (pKa)	9.3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

N-Cyclohexyl-2-aminoethanesulfonic acid, also known as CHES, is a buffering agent.

Typically appears as a white crystalline powder.

CHES buffers have a useful range of pH 8.6–10.

External links

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