MOPS

MOPS
Names
	Preferred IUPAC name 3-(Morpholin-4-yl)propane-1-sulfonic acid
	Other names 3-(N-Morpholino)propanesulfonic acid,; 3-Morpholinopropanesulfonic acid,; 3-N-Morpholino propansulfonic acid,; 4-Morpholinepropanesulfonic acid
Identifiers
CAS Number	1132-61-2 (free acid) ; 71119-22-7 (sodium salt) ;
3D model (JSmol)	Interactive image;
ChemSpider	63972 ;
ECHA InfoCard	100.013.162
PubChem CID	70807; 2723950;
UNII	273BP63NV3 ;
CompTox Dashboard (EPA)	DTXSID4044371 ;
	InChI InChI=1S/C7H15NO4S/c9-13(10,11)7-1-2-8-3-5-12-6-4-8/h1-7H2,(H,9,10,11) Key: DVLFYONBTKHTER-UHFFFAOYSA-N ; InChI=1/C7H15NO4S/c9-13(10,11)7-1-2-8-3-5-12-6-4-8/h1-7H2,(H,9,10,11) Key: DVLFYONBTKHTER-UHFFFAOYAN;
	SMILES C1COCCN1CCCS(=O)(=O)O;
Properties
Chemical formula	C7H15NO4S
Molar mass	209.26 g·mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

MOPS (3-(N-morpholino)propanesulfonic acid) is a buffer introduced in the 1960s, one of the twenty Good's buffers. It is a structural analog to MES, and like MES, its structure contains a morpholine ring. HEPES is a similar pH buffering compound that contains a piperazine ring. With a pK_a of 7.20, MOPS is an excellent buffer for many biological systems at near-neutral pH.