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Sigma-Aldrich

Ethidium homodimer

suitable for fluorescence, ~90% (HPCE)

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Synonym(s):
EtDi, EthD-1
Empirical Formula (Hill Notation):
C46H50Cl4N8
CAS Number:
61926-22-5
Molecular Weight:
856.75
EC Number:
263-325-9
MDL number:
MFCD00210948
UNSPSC Code:
12161505
PubChem Substance ID:
329757072
NACRES:
NA.32

Assay

~90% (HPCE)

Quality Level

100

form

solid

mp

≥250 °C (lit.)

solubility

DMF: soluble
DMSO: soluble
H2O: soluble

fluorescence

λex 493 nm in H2O
λex 528 nm; λem 617 nm in TE buffer; DNA

suitability

suitable for fluorescence

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

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Application

Ethidium homodimer (EtDi, EthD-1) is used as a staining dye for ssDNA, dsDNA, RNA, oligonucleotides, and triplex DNA. EthD-1 does not cross intact/viable cell membranes and can be used to test cell viability.
Staining dye for ssDNA, dsDNA, RNA, oligonucleotides, and triplex DNA. It will not cross intact cell membranes and can be used to test cell viability.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Reagent for the fluorimetric detection of nucleic acids

Signal Word

Danger

Hazard Statements

H261,H314,H351

Hazard Classifications

Carc. 2 - Eye Dam. 1 - Skin Corr. 1B - Water-react 3

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

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