E2005
Eosin 5-isothiocyanate
Synonym(s):
EITC
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About This Item
Empirical Formula (Hill Notation):
C21H7Br4NO5S
CAS Number:
Molecular Weight:
704.96
UNSPSC Code:
12171500
MDL number:
InChI key
MCXYFYWNOWPDMA-UHFFFAOYSA-N
InChI
1S/C21H7Br4NO5S/c22-12-4-10-14(8-2-1-7(26-6-32)3-9(8)21(29)30)11-5-13(23)18(28)16(25)20(11)31-19(10)15(24)17(12)27/h1-5,27H,(H,29,30)
SMILES string
OC(=O)c1cc(ccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c(O)c(Br)cc24)N=C=S
storage temp.
2-8°C
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Application
Fluorescent marker useful in studies of triplet state decay and rotational diffusion.
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R J Cherry et al.
Biochemistry, 15(17), 3653-3656 (1976-08-24)
Slow rotational diffusion may be investigated by measuring the decay of dichroism of flash-induced transient absorption changes of suitable probes. The preparation of the covalent "triplets" probe eosin isothiocyanate is described together with investigations of spectroscopic properties of eosin-protein conjugates.
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