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M2773

Sigma-Aldrich

Magnesium sulfate heptahydrate

BioReagent, for molecular biology, suitable for plant cell culture, ≥99.0%

Synonym(s):

Epsom salts

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About This Item

Linear Formula:
MgSO4 · 7H2O
CAS Number:
Molecular Weight:
246.47
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38030409
PubChem Substance ID:
NACRES:
NA.31
grade:
for molecular biology
Pricing and availability is not currently available.

grade

for molecular biology

Quality Level

vapor density

<0.01 (vs air)

vapor pressure

<0.1 mmHg ( 20 °C)

product line

BioReagent

Assay

≥99.0%

technique(s)

cell culture | plant: suitable

anion traces

chloride (Cl-): ≤5 ppm

cation traces

K: ≤50 ppm
Na: ≤50 ppm
heavy metals (as Pb): ≤5 ppm

foreign activity

DNase, RNase and protease, none detected

SMILES string

O.O.O.O.O.O.O.[Mg++].[O-]S([O-])(=O)=O

InChI

1S/Mg.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

InChI key

WRUGWIBCXHJTDG-UHFFFAOYSA-L

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General description

Magnesium sulfate have anti-convulsant, anti-inflammatory and vasodilatory properties. Magnesium sulfate relaxes smooth muscles.[1] In acute asthma patient, both intravenous and nebulization of magnesium sulfate as an additive improves pulmonary function.[1][2] Magnesium sulfate reduces preterm labor in high risk pregnant women.[1] Magnesium sulfate heptahydrate serves as a source of Mg2+ ions in plant tissue culture medium,[3] and protoplast culture medium.[4]

Application

Magnesium sulfate heptahydrate has been used:
  • in the preparation of Scott′s tap water substitute as a bluing reagent for nuclear staining[5]
  • as a component of stabilization solution for the isolation of pituitary cells for matrix-assisted laser desorption/ionization mass spectroscopy (MALDI-MS)[6]
  • as an additive in the preparation of artificial sea water for the maintenance of Aplysia californica and in modified Gey′s balanced salt solution[7]

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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Getting started with tissue culture-Media preparation, sterile technique and laboratory equipment
Plant Tissue Culture, Development, and Biotechnology, 15-15 (2016)
Embedding, serial sectioning and staining of zebrafish embryos using JB-4 resin
Sullivan-Brown J, et al.
Nature Protocols, 6(1), 46-46 (2011)
Protoplast isolation, culture and somatic hybridization
Plant Tissue Culture: Theory and Techniques (2016)
Qualitative and quantitative metabolomic investigation of single neurons by capillary electrophoresis electrospray ionization mass spectrometry
Nemes, Peter and Rubakhin, Stanislav S and Aerts, Jordan T and Sweedler, Jonathan V
Nature Protocols, 8(4), 783-783 (2013)
Characterizing peptides in individual mammalian cells using mass spectrometry
Rubakhin SS and Sweedler JV
Nature Protocols, 2(8), 1987-1987 (2007)

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/449/386/product-dating-information-mk.pdf

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  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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