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Home/Compounds/Dye & Pigment/3H-Indolium, 2-[3-[1-[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-1,3-dihydro-3,3-dimethyl-5-sulfo-2H-indol-2-ylidene]-1-propen-1-yl]-1-ethyl-3,3-dimethyl-5-sulfo-, inner salt
C35H41N3O10S2
727.8 g/mol
Dye & Pigment

Cyanine 3, SE

CAS146368-16-3
Category
Dye & Pigment
Compound Class
Heterocycle
Primary Use
fluorescent dye labeling reagent

Cyanine 3, SE is a fluorescent dye labeling reagent commonly used in biochemical research for the covalent attachment of a fluorescent tag to biomolecules. It features a reactive N-hydroxysuccinimide (NHS) ester group that selectively conjugates with primary amines on proteins, antibodies, or other amine-containing molecules.

fluorescent labeling of proteins and antibodiesbioconjugation for fluorescence-based assaysresearch reagent for fluorescent detection

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

StrongStructure SimilarSimilarity 0.95

3H-Indolium, 2-[7-[1-[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-1,3-dihydro-3,3-dimethyl-5-sulfo-2H-indol-2-ylidene]-1,3,5-heptatrienyl]-1-ethyl-3,3-dimethyl-5-sulfo-, inner salt

CAS477908-53-5

research compound

StrongStructure SimilarSimilarity 0.95

Cy5-succinimidyl ester

CAS146368-14-1

research compound

SimilarStructure SimilarSimilarity 0.78

3H-Indolium, 2-[3-[1-(5-carboxypentyl)-1,3-dihydro-3,3-dimethyl-5-sulfo-2H-indol-2-ylidene]-1-propenyl]-1-ethyl-3,3-dimethyl-5-sulfo-, inner salt

CAS146368-13-0

research compound

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Identifiers
IUPAC Name

2-[3-[1-[6-(2,5-dioxopyrrolidin-1-yl)oxy-6-oxohexyl]-3,3-dimethyl-5-sulfoindol-1-ium-2-yl]prop-2-enylidene]-1-ethyl-3,3-dimethylindole-5-sulfonate

InChIKey

SOVMUUCAZOFIQP-UHFFFAOYSA-N

SMILES

CCN1C2=C(C=C(C=C2)S(=O)(=O)[O-])C(C1=CC=CC3=[N+](C4=C(C3(C)C)C=C(C=C4)S(=O)(=O)O)CCCCCC(=O)ON5C(=O)CCC5=O)(C)C

Synonyms (6)
  • Cyanine 3, SE
  • Sulfo-Cyanine3, SE (ethyl)