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17195

Sigma-Aldrich

Fura 2 pentapotassium salt

for fluorescence, ≥90% (HPLC)

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1 MG
¥49,800

¥49,800

Estimated to ship onJune 01, 2025

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1 MG
¥49,800

About This Item

Empirical Formula (Hill Notation):
C29H22K5N3O14
CAS Number:
113694-64-7
Molecular Weight:
831.99
MDL number:
MFCD00083328
UNSPSC Code:
12171500
PubChem Substance ID:
57647616
NACRES:
NA.32

¥49,800

Estimated to ship onJune 01, 2025

Request a Bulk Order

grade

for fluorescence

Assay

≥90% (HPLC)

form

solid

solubility

H2O: soluble

fluorescence

λex 355 nm; λem 495 nm in 0.1 M Tris pH 8.0, Ca2+

suitability

suitable for fluorescence

storage temp.

−20°C

SMILES string

[K+].[K+].[K+].[K+].[K+].Cc1ccc(N(CC([O-])=O)CC([O-])=O)c(OCCOc2cc3cc(oc3cc2N(CC([O-])=O)CC([O-])=O)-c4ncc(o4)C([O-])=O)c1

InChI

1S/C29H27N3O14.5K/c1-15-2-3-17(31(11-24(33)34)12-25(35)36)20(6-15)43-4-5-44-21-7-16-8-22(28-30-10-23(46-28)29(41)42)45-19(16)9-18(21)32(13-26(37)38)14-27(39)40;;;;;/h2-3,6-10H,4-5,11-14H2,1H3,(H,33,34)(H,35,36)(H,37,38)(H,39,40)(H,41,42);;;;;/q;5*+1/p-5

InChI key

HQKWBBCTCLUGSX-UHFFFAOYSA-I

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Other Notes

A very sensitive fluorescent calcium chelator that exhibits a spectral shift in excitation maxima on binding calcium[1][2]

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

17195-1MG-BULK:
17195-BULK:
17195-1MG:
17195-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCK9702
BCCF3537
BCCC8909
BCCB9831
BCBS8565V

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Measurement of Ca2+ release in skinned fibers from skeletal muscle.
M Endo et al.
Methods in enzymology, 157, 12-26 (1988-01-01)
G Grynkiewicz et al.
The Journal of biological chemistry, 260(6), 3440-3450 (1985-03-25)
A new family of highly fluorescent indicators has been synthesized for biochemical studies of the physiological role of cytosolic free Ca2+. The compounds combine an 8-coordinate tetracarboxylate chelating site with stilbene chromophores. Incorporation of the ethylenic linkage of the stilbene

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