2',4',5',7'-Tetrabromo-3',6'-dihydroxy-5-isothiocyanato-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one

HCID 173745CAS 60520-47-0

Completing data — usually done within a minute

Basic information

Standard SMILES
O=C1OC2(c3ccc(N=C=S)cc31)c1cc(Br)c(O)c(Br)c1Oc1c2cc(Br)c(O)c1Br
InChIKey
XHXYXYGSUXANME-UHFFFAOYSA-N
Molecular formula
C21H7Br4NO5S
Average molar mass
704.972 g/mol
Monoisotopic mass
700.67784172

Names & identifiers

Preferred name
2',4',5',7'-Tetrabromo-3',6'-dihydroxy-5-isothiocyanato-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one
IUPAC
2',4',5',7'-Tetrabromo-3',6'-dihydroxy-5-isothiocyanato-3H-spiro[[2]benzofuran-1,9'-xanthen]-3-one
English name
Eosin 5-isothiocyanate
Molecular formula
C21H7Br4NO5S
Molecular weight
704.97

Names & synonyms

EITCEosin 5-isothiocyanateeosine-5-isothiocyanateEosin 5-isothiocyanate–Celite?Eosin 5-isothiocyanate-Celite(R)EOSIN 5-ISOTHIOCYANATE >= 95.0% (UV)EOSIN 5-ISOTHIOCYANATE FOR FLUOR- &EOSIN-5-ISOTHIOCYANATE, FOR FLUOR-ESCENC EEosin-5-isothiocyanate [2',4',5',7'-TetrabroMofluorescein-5-isothiocyanate]Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 2,4,5,7-tetrabromo-3,6-dihydroxy-5-isothiocyanato-

Database identifiers

CAS
60520-47-0
PubChem CID
173745
DTXSID
DTXSID70975933
ChEBI
CHEBI:60597
EC Number
637-417-8

Properties

Physicochemical properties

Boiling point
719.1 · 719.1±60.0 °C(Predicted)
Density
2.33 · 2.33±0.1 g/cm3(Predicted)
storage temp.
2 · 2-8°C
solubility
DMSO (Slightly), Methanol (Slightly)
pka
6.93 · 6.93±0.20(Predicted)
form
Solid

Safety & regulation

Safety data

F
8-9
PPE
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
wgk
3
risk_code
42
Signal word
Danger
Symbol(GHS)
GHS08

Chemistry & industry

Applications · 3 items

DescriptionEosine-5-isothiocyanate is an amine-reactive fluorescent probe for protein rotational diffusion measurement.

UsesEosin 5-isothiocyanate (EITC) is a fluorescence probe. EITC tagged molecules may be used together with fluorescein-5′-isothiocyanate (FITC) tagged molecules in fluoresce resonance energy transfer (FRET) based assays.

UsesAcceptor fluorophore. Measurement of rotational diffusion of proteins; In fluorescence energy transfer studies: R. Wagner et al.; FEBS Lett. 230, 109 (1988)

Suppliers23 total

阿诺西(上海)生物技术有限公司400-1107768 15058188853 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
北京阿克曼科技有限公司18001219251
江苏艾康生物医药研发有限公司025-025-66113011 15955137747 · [email protected]
安耐吉化学&3A(安徽泽升科技有限公司)021-58432009 400-005-6266 · [email protected]

Additional notes

DefinitionChEBI: The 2',4',5',7'-tetrabromo-5-isothiocyanato derivative of fluorescein; exhibits phosphorescence with an emission maximum at ~680 nm.

Related reactions

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Linked notes

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