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1,2-Bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid tetrasodium salt

SIGMA/14513 - ≥95% (HPLC)

Synonym: 1,2-Bis (2-aminophenoxy) ethane-N,N,N′,N′-tetraacetic acid tetrasodium salt; BAPTA-Na4; Tetrasodium 1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetate

CAS Number: 126824-24-6
Empirical Formula (Hill Notation): C22H20N2Na4O10
Molecular Weight: 564.36
MDL Number: MFCD00067691
Linear Formula: C22H20N2Na4O10
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-14513-250MG 250 mg
$72.40
1/EA
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45-14513-1G 1 g
$183.00
1/EA
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assay ≥95% (HPLC)
fluorescence λex 254 nm; λem 363 nm in H2O
  λex 274 nm; λem 363 nm (with calcium)
form powder
impurities ≤12.5% water
InChI 1S/C22H24N2O10.4Na/c25-19(26)11-23(12-20(27)28)15-5-1-3-7-17(15)33-9-10-34-18-8-4-2-6-16(18)24(13-21(29)30)14-22(31)32;;;;/h1-8H,9-14H2,(H,25,26)(H,27,28)(H,29,30)(H,31,32);;;;/q;4*+1/p-4
InChI key ZWSMLJACYSGFKD-UHFFFAOYSA-J
Quality Level 200 
SMILES string [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)c1ccccc1OCCOc2ccccc2N(CC([O-])=O)CC([O-])=O
solubility H2O: 10 mg/mL, clear, faintly yellow
storage temp. −20°C
Application: BAPTA-Na4 is a fluorescent compound utilized to determine free Ca2+ by performing fluorescence emission scans at an excitation wavelength of 299 nm and measuring the emission wavelength at 360 nm .
Application: suitable as Ca2+-indicator (fluorescence suppressed by Ca2+)
Other Notes: Chelator with a greater selectivity for calcium compared with magnesium (spectrophotometric monitoring):
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity ≥95% (HPLC)
Storage Temp. −20°C
UNSPSC 12352106

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