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Merck

57180

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:
132319-56-3
Molecular Weight:
840.05
NACRES:
NA.32
PubChem Substance ID:
329758276
UNSPSC Code:
12352200
MDL number:
MFCD00077797

Key Documents

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Product Name

Indo 1, suitable for fluorescence, ≥80.0% (HPLC)

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

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 key

VGZPRMSXVNDMAN-UHFFFAOYSA-I

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

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

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCB7609
BCBV4049
BCBQ7736V
BCBK8919V

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Wanwarang Wongcharoen et al.
Cardiovascular research, 70(3), 497-508 (2006-04-01)
Pulmonary veins (PVs) are the most important focus for generation of atrial fibrillation. The Na(+)/Ca(2+) exchange (NCX) current is important in PV electrical activity and cardiac glycosides-induced arrhythmias. The purpose of this study was to investigate whether KB-R7943, a NCX
Terence R Moopanar et al.
The Journal of physiology, 571(Pt 1), 191-200 (2005-12-13)
The aim of this study was to further characterize the reduction of myofibrillar Ca2+ sensitivity in mouse muscle which has been observed after fatigue at 37 degrees C. Muscle bundles and single fibres were isolated from mouse flexor digitorum brevis
Yao-Chang Chen et al.
Journal of molecular and cellular cardiology, 48(4), 781-788 (2009-08-22)
Heat stress-induced responses change the ionic currents and calcium homeostasis. However, the molecular insights into the heat stress responses on calcium homeostasis remain unclear. The purposes of this study were to examine the mechanisms of heat stress responses on calcium
K Nishimaru et al.
British journal of pharmacology, 152(4), 456-463 (2007-07-21)
The potent vasoconstrictor polypeptide endothelin-1 (ET-1) plays an important pathophysiological role in progression of cardiovascular diseases and elicits prominent effects on myocardial contractility. Although ET-1 produces a positive inotropy in cardiac muscle of most mammalian species, it induces a sustained
Yael Yaniv et al.
PloS one, 7(5), e37582-e37582 (2012-06-06)
Mitochondria dynamically buffer cytosolic Ca(2+) in cardiac ventricular cells and this affects the Ca(2+) load of the sarcoplasmic reticulum (SR). In sinoatrial-node cells (SANC) the SR generates periodic local, subsarcolemmal Ca(2+) releases (LCRs) that depend upon the SR load and
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