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57180

Sigma-Aldrich

Indo 1

suitable for fluorescence, ≥80.0% (HPLC)

Synonym(s):

4-(6-Carboxy-2-indolyl)-4′-methyl-2,2′-(ethylenedioxy)dianiline-N,N,N′,N′-tetraacetic acid pentapotassium salt

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About This Item

Empirical Formula (Hill Notation):
C32H26K5N3O12
CAS Number:
Molecular Weight:
840.05
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.32

Assay

≥80.0% (HPLC)

form

solid

fluorescence

λex 331 nm; λem 398 nm in 0.1 M Tris pH 8.0, 10 mM Ca2+
λex 349 nm; λem 482 nm (100mM KCI)

suitability

in accordance for fluorescence
suitable for fluorescence

storage temp.

−20°C

SMILES string

[K+].[K+].[K+].[K+].[K+].Cc1ccc(N(CC([O-])=O)CC([O-])=O)c(OCCOc2cc(ccc2N(CC([O-])=O)CC([O-])=O)-c3cc4ccc(cc4[nH]3)C([O-])=O)c1

InChI

1S/C32H31N3O12.5K/c1-18-2-6-24(34(14-28(36)37)15-29(38)39)26(10-18)46-8-9-47-27-13-20(5-7-25(27)35(16-30(40)41)17-31(42)43)22-11-19-3-4-21(32(44)45)12-23(19)33-22;;;;;/h2-7,10-13,33H,8-9,14-17H2,1H3,(H,36,37)(H,38,39)(H,40,41)(H,42,43)(H,44,45);;;;;/q;5*+1/p-5

InChI key

VGZPRMSXVNDMAN-UHFFFAOYSA-I

Application

Indo 1, a fluorescent calcium chelator and indicator, is used to monitor cytoplasmic Ca2+ transients induced by various physiological and mechanical processes.

Other Notes

Fluorescent calcium chelator and indicator with an unusually large shift in fluorescence emission from 480 nm to 400 nm on binding of calcium. Useful for intracellular application

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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