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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:
Molecular Weight:
856.75
EC Number:
MDL number:
PubChem Substance ID:

assay

~90% (HPCE)

Quality Level

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

signalword

Danger

Hazard Classifications

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

Storage Class

4.3 - Hazardous materials, which set free flammable gases upon contact with water

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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