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^Y
3D model (Jmol)	Interactive image
ChemSpider	60260^Y
DrugBank	DB03309^Y
ECHA InfoCard	100.002.832
MeSH	2-(N-cyclohexylamino)ethanesulfonic+acid
PubChem	66898
UNII	71X53V3RZ1^Y
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)^Y Key: MKWKNSIESPFAQN-UHFFFAOYSA-N^Y 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 (pK_a)	9.3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is ^YN ?)
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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