Merck
All Photos(1)

Documents

E1903

Sigma-Aldrich

Ethidium homodimer I solution

≥95%, 2 mM in DMSO

Sign Into View Organizational & Contract Pricing

Synonym(s):
EtDi, EthD-1, Phenanthridinium, 5,5′-[1,2-ethanediylbis(imino-3,1-propanediyl)]bis(3, 8-diamino-6-phenyl)-,dichloride,dihydrochloride
Empirical Formula (Hill Notation):
C46H50Cl4N8
Molecular Weight:
856.75
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

Quality Level

Assay

≥95%

form

liquid

concentration

2 mM in DMSO

color

red

ε (extinction coefficient)

≥9000 at 490-496 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

−20°C

SMILES string

Cl.Cl.[Cl-].[Cl-].Nc1ccc2c(c1)c(-c3ccccc3)[n+](CCCNCCNCCC[n+]4c(-c5ccccc5)c6cc(N)ccc6c7ccc(N)cc47)c8cc(N)ccc28

InChI

1S/C46H46N8.4ClH/c47-33-13-17-37-39-19-15-35(49)29-43(39)53(45(41(37)27-33)31-9-3-1-4-10-31)25-7-21-51-23-24-52-22-8-26-54-44-30-36(50)16-20-40(44)38-18-14-34(48)28-42(38)46(54)32-11-5-2-6-12-32;;;;/h1-6,9-20,27-30,49-52H,7-8,21-26,47-48H2;4*1H

InChI key

ZKAJUKABUUJRLB-UHFFFAOYSA-N

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
T2763199311A8097
Thymol iodide

Sigma-Aldrich

T2763

Thymol iodide

Tetrabromophenol Blue Dye content 75 %

Sigma-Aldrich

199311

Tetrabromophenol Blue

form

liquid

form

powder

form

powder

form

solution

concentration

2 mM in DMSO

concentration

-

concentration

-

concentration

10 mg/mL in H2O

color

red

color

-

color

-

color

orange to red

ε (extinction coefficient)

≥9000 at 490-496 nm in water

ε (extinction coefficient)

-

ε (extinction coefficient)

≥55000 at 606-616 nm in ethanol and water

ε (extinction coefficient)

-

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

Application

Ethidium homodimer I solution has been used to check membrane integrity in sperms.
Stains ssDNA, dsDNA, RNA, oligonucleotides, and triplex DNA structures.
Used to detect DNA in solution.

Biochem/physiol Actions

Ethidium homodimer is a red fluorescent dye. It cannot cross an intact plasma membrane, but can easily pass through a damaged plasma membrane. Ethidium homodimer is used to check membrane integrity.
One molecule of EthD-1 will non-selectively bind four base pairs in dsDNA.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

185.0 °F - closed cup

Flash Point(C)

85 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 2

1 of 2

DAPI for nucleic acid staining

Sigma-Aldrich

D9542

DAPI

C Carlsson et al.
Nucleic acids research, 23(13), 2413-2420 (1995-07-11)
Many bis-intercalating dyes used for fluorescence detection of DNA in electrophoresis have been reported to give band-splitting and band-broadening, which results in poor resolution and a decreased detection sensitivity. We have studied the dimeric dye YOYO-1, and to some extent
Desiccation tolerance in bovine sperm: a study of the effect of intracellular sugars and the supplemental roles of an antioxidant and a chelator.
Sitaula R, et al.
Cryobiology, 58, 322-330 (2009)
E Tuite et al.
Bioorganic & medicinal chemistry, 3(6), 701-711 (1995-06-01)
The binding of phenanthridine dyes to triplex poly(dT)*poly(dA).poly(dT) and its precursor duplex poly(dA).poly(dT) is characterized using linear dichroism and circular dichroism spectroscopy, and thermal denaturation. The two monomeric dyes ethidium bromide and propidium iodide are shown to behave similarly to
Samuel B Tristan-Landin et al.
PloS one, 14(10), e0215114-e0215114 (2019-10-11)
Fluorescence microscopy is one of the workhorses of biomedical research and laboratory diagnosis; however, their cost, size, maintenance, and fragility has prevented their adoption in developing countries or low-resource settings. Although significant advances have decreased their size, cost and accessibility

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service