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Merck
CN

69940

MOPSO

≥99.0% (T)

Synonym(s):

β-Hydroxy-4-morpholinepropanesulfonic acid, 3-Morpholino-2-hydroxypropanesulfonic acid

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About This Item

Empirical Formula (Hill Notation):
C7H15NO5S
CAS Number:
Molecular Weight:
225.26
EC Number:
269-989-6
UNSPSC Code:
12161700
MDL number:
Beilstein/REAXYS Number:
1109697
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assay

≥99.0% (T)

impurities

≤1% water

ign. residue

≤0.2% (as SO4)

useful pH range

6.2-7.6

pKa 

6.9

mp

275-280 °C (dec.)

solubility

H2O: 0.5 M at 20 °C, clear

anion traces

chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤500 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

OC(CN1CCOCC1)CS(O)(=O)=O

InChI

1S/C7H15NO5S/c9-7(6-14(10,11)12)5-8-1-3-13-4-2-8/h7,9H,1-6H2,(H,10,11,12)

InChI key

NUFBIAUZAMHTSP-UHFFFAOYSA-N

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Other Notes

New zwitterionic hydrogen buffer for biological research

Disclaimer

According to Ferreira, et al., MOPSO can have a strong interaction with iron in solution. Based on this citation, it is recommended to use plastic-coated or PTFE-coated utensils when working with this chemical.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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(Un)suitability of the use of pH buffers in biological, biochemical and environmental studies and their interaction with metal ions - a review.
Ferreira C.M.H. et al.
Royal Society of Chemistry Advances, 5, 30989-31003 (2015)
Hydrogen ion buffers for biological research.
W J Ferguson et al.
Analytical biochemistry, 104(2), 300-310 (1980-05-15)
(Un)suitability of the use of pH buffers in biological, biochemical and environmental studies and their interaction with metal ions ? a review.
Ferreira, C.M.H., et al.
Royal Society of Chemistry Advances, 5, 30989-31003 (2015)

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