CAPS (buffer)

CAPS^[1]
Names

IUPAC name 3-(Cyclohexylamino)-1-propanesulfonic acid
Identifiers
CAS Number	1135-40-6^Y
3D model (Jmol)	Interactive image
ChemSpider	63979^N
ECHA InfoCard	100.013.175
PubChem	70815
InChI InChI=1S/C9H19NO3S/c11-14(12,13)8-4-7-10-9-5-2-1-3-6-9/h9-10H,1-8H2,(H,11,12,13)^N Key: PJWWRFATQTVXHA-UHFFFAOYSA-N^N InChI=1/C9H19NO3S/c11-14(12,13)8-4-7-10-9-5-2-1-3-6-9/h9-10H,1-8H2,(H,11,12,13) Key: PJWWRFATQTVXHA-UHFFFAOYAU
SMILES C1CCC(CC1)NCCCS(=O)(=O)O
Properties
Chemical formula	C₉H₁₉NO₃S
Molar mass	221.32 g/mol
Melting point	>300 °C
Acidity (pK_a)	10.4
Hazards
S-phrases	S22 S24/25
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

CAPS is the common name for N-cyclohexyl-3-aminopropanesulfonic acid, a chemical used as buffering agent in biochemistry. The similar substance N-cyclohexyl-2-hydroxyl-3-aminopropanesulfonic acid (CAPSO) is also used as buffering agent in biochemistry. Its useful pH range is 9.7-11.1.

References

↑ CAPS at Sigma-Aldrich

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CAPS (buffer)

See also

References