Caps (Buffer)

CAPS^[1]
Names
	Preferred IUPAC name 3-(Cyclohexylamino)propane-1-sulfonic acid
Identifiers
CAS Number	1135-40-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	63979 ;
DrugBank	DB02219;
EC Number	214-492-1;
PubChem CID	70815;
UNII	4W981O1LXP;
	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) Key: PJWWRFATQTVXHA-UHFFFAOYSA-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 (pKa)	10.4
Hazards
GHS pictograms
GHS Signal word	Warning
GHS hazard statements	H302, H315, H319, H335
GHS precautionary statements	P261, P264, P270, P271, P280, P301+312, P302+352, P304+340, P305+351+338, P312, P321, P330, P332+313, P337+313, P362, P403+233, P405, P501
	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

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
↑ Esplin, Taran L.; Cable, Morgan L.; Gray, Harry B.; Ponce, Adrian (2010). "Terbium-Macrocycle Complexes as Chemical Sensors: Detection of an Aspirin Metabolite in Urine Using a Salicylurate-Specific Receptor Site". Inorganic Chemistry 49 (10): 4643–4647. doi:10.1021/ic1003066.
Tabata, Masaaki; Habib, Ahsan; Watanabe, Keiichi (2005). "DNA Cleavage by Good’s Buffers in the Presence of Au(III)". Bulletin of the Chemical Society of Japan 78 (7): 1263–1269. doi:10.1246/bcsj.78.1263.

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[1] CAPS at Sigma-Aldrich

[2] Esplin, Taran L.; Cable, Morgan L.; Gray, Harry B.; Ponce, Adrian (2010). "Terbium-Macrocycle Complexes as Chemical Sensors: Detection of an Aspirin Metabolite in Urine Using a Salicylurate-Specific Receptor Site". Inorganic Chemistry 49 (10): 4643–4647. doi:10.1021/ic1003066.
Tabata, Masaaki; Habib, Ahsan; Watanabe, Keiichi (2005). "DNA Cleavage by Good’s Buffers in the Presence of Au(III)". Bulletin of the Chemical Society of Japan 78 (7): 1263–1269. doi:10.1246/bcsj.78.1263.

Caps (Buffer)

See also

References