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M3148

Sigma-Aldrich

2-Mercaptoethanol

for molecular biology, suitable for electrophoresis, suitable for cell culture, BioReagent, 99% (GC/titration)

Synonym(s):

β-Mercaptoethanol, 2-Hydroxyethylmercaptan, BME, Thioethylene glycol

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About This Item

Linear Formula:
HSCH2CH2OH
CAS Number:
60-24-2
Molecular Weight:
78.13
Beilstein:
773648
EC Number:
200-464-6
MDL number:
MFCD00004890
UNSPSC Code:
12161504
PubChem Substance ID:
24896800
NACRES:
NA.31
Pricing and availability is not currently available.

grade

for molecular biology

Quality Level

200

vapor density

2.69 (vs air)

vapor pressure

1 mmHg ( 20 °C)

product line

BioReagent

Assay

99% (GC/titration)

form

liquid

expl. lim.

18 %

reaction suitability

reagent type: reductant

concentration

14.3 M (pure liquid)

technique(s)

cell culture | mammalian: suitable
electrophoresis: suitable

refractive index

n20/D 1.500 (lit.)

pH

4.5-6 (20 °C, 500 g/L)

bp

157 °C (lit.)

solubility

H2O: soluble 1 mL/mL

density

1.114 g/mL at 25 °C (lit.)

foreign activity

DNase, RNase, protease, none detected

storage temp.

2-8°C

SMILES string

OCCS

InChI

1S/C2H6OS/c3-1-2-4/h3-4H,1-2H2

InChI key

DGVVWUTYPXICAM-UHFFFAOYSA-N

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Application

BME is suitable for reducing protein disulfide bonds prior to polyacrylamide gel electrophoresis and is usually included in a sample buffer for SDS-PAGE at a concentration of 5%. Cleaving intermolecular (between subunits) disulfide bonds allows the subunits of a protein to separate independently on SDS-PAGE. Cleaving intramolecular (within subunit) disulfide bonds allows the subunits to become completely denatured so that each peptide migrates according to its chain length with no influence due to secondary structure.
Reducing agent
β-mercaptoethanol or 2-mercaptoethanol has been used:
  • as a supplement in Roswell Park Memorial Institute (RPMI)-1640 medium to culture DT40 cells (chicken B cell line)[1]
  • to lyse NuLi-1 (Normal Lung, University of Iowa-1) cells[2]
  • to trypsinize mouse embryonic stem cells[3]

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Repr. 2 - Skin Irrit. 2 - Skin Sens. 1A - STOT RE 2 Oral

Target Organs

Liver,Heart

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

154.4 °F - closed cup

Flash Point(C)

68 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM6691
0000385093
0000385092
0000385092
0000385093

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Reduced Innate Immune Response to a Staphylococcus aureus Small Colony Variant Compared to Its Wild-Type Parent Strain
Judy J
Frontiers in Cellular and Infection Microbiology, 6, 187-187 (2016)
A subset of platinum-containing chemotherapeutic agents kills cells by inducing ribosome biogenesis stress
Peter M Bruno
Nature Medicine, 23 (2017)
Kotaro Fujii et al.
Nature communications, 8, 14443-14443 (2017-02-15)
The degree and dynamics of translational control during mammalian development remain poorly understood. Here we monitored translation of the mammalian genome as cells become specified and organize into tissues in vivo. This identified unexpected and pervasive translational regulation of most
Yasunari Seita et al.
Biology of reproduction, 100(6), 1440-1452 (2019-03-15)
Nonhuman primates (NHPs) are considered to be the most valuable models for human transgenic (Tg) research into disease because human pathology is more closely recapitulated in NHPs than rodents. Previous studies have reported the generation of Tg NHPs that ubiquitously
Manching Ku et al.
PLoS genetics, 4(10), e1000242-e1000242 (2008-11-01)
In embryonic stem (ES) cells, bivalent chromatin domains with overlapping repressive (H3 lysine 27 tri-methylation) and activating (H3 lysine 4 tri-methylation) histone modifications mark the promoters of more than 2,000 genes. To gain insight into the structure and function of
View All Related Papers

Protocols

Protocol Guide: XTT Assay for Cell Viability and Proliferation

XTT assay protocol for measuring cell viability, proliferation, activation and cytotoxicity. Instructions for XTT reagent preparation and examples of applications.

MTT Assay Protocol for Cell Viability and Proliferation

MTT assay protocol for measuring cell viability, proliferation and cytotoxicity. Instructions for MTT reagent preparation and examples of applications.

Stripping and Reprobing Western Blotting Membranes

This page shows and discusses three protocols for stripping and reprobing a western blot membrane.

Questions

1–5 of 5 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

      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

      Helpful?

  3. I’ve purchased 25mL bottle and want to use this in my cell culture media at concentration of 50mM. What is the concentration in the 25mL bottle and how to make this to 50mM concentration?

    1 answer

    1. This product is a neat or pure material. The concentration is considered to be 100%. The calculated molarity is 14.3 M as reported in the Properties section of the product page.
      To prepare a 50 mM solution, please mix 0.391 g of M3148 with 100 mL solvent. 0.391 g / 78.13 g/mol / 0.1 L = 0.05 = 50 mM.

      Helpful?

  4. Hi, What is the concentration of 2-mercaptoethanol in the 100mL bottle? 

    1 answer

    1. This product is a neat or pure material. The concentration is considered to be 100%. The calculated molarity is 14.3 M as reported in the Properties section of the product page.

      Helpful?

  5. Hi is this sterile?

    1 answer

    1. This product is not sterile, but can be used in cell culture applications and is DNase, RNase, and protease free.

      Helpful?

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