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A5894

Sigma-Aldrich

Antipyrylazo III

~95%

Synonym(s):

3,6-Bis(4-antipyrylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt

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About This Item

Empirical Formula (Hill Notation):
C32H26N8Na2O10S2
CAS Number:
14918-39-9
Molecular Weight:
792.71
Beilstein:
956469
EC Number:
238-988-2
MDL number:
MFCD00042700
UNSPSC Code:
12171500
PubChem Substance ID:
24891032

Assay

~95%

technique(s)

titration: suitable

suitability

suitable for determination of calcium (method in Anal. Chim. Acta, 71, 343 (1974))

SMILES string

[Na+].[Na+].CN1N(c2ccccc2)C(=O)C(\N=N\c3c(O)c4c(O)c(\N=N\C5=C(C)N(C)N(c6ccccc6)C5=O)c(cc4cc3S([O-])(=O)=O)S([O-])(=O)=O)=C1C

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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

A5894-1G:
A5894-100MG:
A5894-BULK:
A5894-250MG:
A5894-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
089F0935

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J Maylie et al.
The Journal of physiology, 442, 551-567 (1991-10-01)
1. The effects of 2,3-butanedione monoxime (BDM) on the optical retardation and myoplasmic Ca2+ signal were studied in twitch fibres of Rana temporaria. The myoplasmic Ca2+ transient in response to action potential stimulation was monitored in cut fibres containing Antipyrylazo
A Barth et al.
Biochimica et biophysica acta, 1057(1), 115-123 (1991-03-01)
Fourier transform infrared spectroscopy was used to investigate ligand binding and conformational changes in the Ca2(+)-ATPase of sarcoplasmic reticulum during the catalytic cycle. The ATPase reaction was started in the infrared sample by release of ATP from the inactive, photolabile
J Garcia et al.
The Journal of physiology, 463, 709-728 (1993-04-01)
1. Calcium transients were recorded from cut segments of fast-twitch rat skeletal muscle fibres stretched to 3.7-4.0 microns per sarcomere and voltage clamped at a holding potential of -80 mV using the double Vaseline-gap technique. Calcium transients were monitored simultaneously
Cation complexation by antipyrylazo III: chelate spectral behavior correlated with divalent cation properties.
S E Pattison et al.
Analytical biochemistry, 247(1), 181-183 (1997-04-05)
H Sun et al.
Biochimica et biophysica acta, 1403(1), 57-71 (1998-06-12)
The accurate measurement of the intracellular concentration of free magnesium ions ([Mg2+]i) is essential for evaluating the role of Mg2+ in cellular functions. Among the specific (compared to fluorescent indicators) metallochromic dyes, antipyrylazo III (APIII) appears to be most suitable
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