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69947

MOPS

≥99.5% (titration), powder or crystals, for molecular biology, BioUltra

Synonym(s):

3-(N-Morpholino)propanesulfonic acid, 4-Morpholinepropanesulfonic acid

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25 g

Available to ship TODAYfromMILWAUKEE

$150.00
100 g

Available to ship TODAYfromMILWAUKEE

$467.00
500 g

Estimated to ship onMay 13, 2026fromMILWAUKEE

$1,020.00

About This Item

Empirical Formula (Hill Notation):
C7H15NO4S
CAS Number:
Molecular Weight:
209.26
NACRES:
NA.25
PubChem Substance ID:
UNSPSC Code:
12161700
EC Number:
214-478-5
MDL number:
Beilstein/REAXYS Number:
1106776

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Product Name

MOPS, BioUltra, Molecular Biology, ≥99.5% (titration)

grade

Molecular Biology

Quality Level

product line

BioUltra

assay

≥99.5% (titration)

form

powder or crystals

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

ign. residue

≤0.1% (as SO4)

loss

≤1% loss on drying, 110 °C

pH

2.5-4.0 (25 °C, 1 M in H2O)

useful pH range

6.5-7.9

pKa (25 °C)

7.2

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

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

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, 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, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.020, λ: 280 nm Amax: 0.015

SMILES string

OS(=O)(=O)CCCN1CCOCC1

InChI

1S/C7H15NO4S/c9-13(10,11)7-1-2-8-3-5-12-6-4-8/h1-7H2,(H,9,10,11)

InChI key

DVLFYONBTKHTER-UHFFFAOYSA-N

General description

3-(N-Morpholino)propanesulfonic acid or MOPS due to its inert nature is a preferred and widely used buffer in many biochemical studies.

Application

MOPS has been used:
  • as a component of Roswell Park Memorial Institute (RPMI) medium for diluting fungal inoculum[1]
  • as a buffer in capillary-zone electrophoresis to test performance[2]
  • for the dilution of proteins from algal samples

Other Notes

Component of running buffer in the fractionation of RNA on formaldehyde agarose gels.
Easily compare specifications for MOPS products with the MOPS specification table.

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This Item
M1254475898137273
MOPS EMPROVE® EVOLVE

SAFC

137273

MOPS

grade

Molecular Biology

grade

-

grade

-

grade

-

assay

≥99.5% (titration)

assay

≥99.5% (titration)

assay

≥99% (titration)

assay

99.5%

product line

BioUltra

product line

-

product line

-

product line

EMPROVE® EVOLVE

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

400

form

powder or crystals

form

crystalline powder

form

solid

form

powder

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

water: 0.5 g/mL, clear, colorless

solubility

water: 1 M

solubility

-


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

230.0 °F - closed cup

flash_point_c

110 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Related Content

MOPS Specification Comparison


Interactions of biological buffers with macromolecules: the ubiquitous ?smart? polymer PNIPAM and the biological buffers MES, MOPS, and MOPSO
Taha M, et al.
Macromolecules, 44(21) (44)
R.C. Ogden et al.
Methods in Enzymology, 152, 82-82 (1987)
Separation and Detection of Phosphorylated and Nonphosphorylated BvgA, a Bordetella pertussis Response Regulator, in vivo and in vitro
Chen Q, et al.
Bio-protocol, 3 (2013)



Global Trade Item Number

SKUGTIN
69947-100G04061835541607
69947-500G04061835541614
69947-25G04061832794969

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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