1,2-Bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid tetrasodium salt_Molecular_structure_CAS_126824-24-6)

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1,2-Bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid tetrasodium salt
Catalog No.	14513	Name	Sigma Aldrich
CAS Number	126824-24-6	Website	http://www.sigmaaldrich.com
M. F.	C22H20N2Na4O10	Telephone	1-800-521-8956
M. W.	564.36068	Fax
Purity	≥95% (HPLC)	Email
Storage		Chembase ID: 155989

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SYNONYMS

Title

1,2-双(2-氨基苯氧基)乙烷-N,N,N′,N′-四乙酸四钠盐

IUPAC name

tetrasodium 2-{[2-(2-{2-[bis(carboxylatomethyl)amino]phenoxy}ethoxy)phenyl](carboxylatomethyl)amino}acetate

IUPAC Traditional name

tetrasodium 2-{[2-(2-{2-[bis(carboxylatomethyl)amino]phenoxy}ethoxy)phenyl](carboxylatomethyl)amino}acetate

Synonyms

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

DATABASE IDS

MDL Number	MFCD00067691
PubChem SID	24848704
Beilstein Number	8818619
CAS Number	126824-24-6

PROPERTIES

Empirical Formula (Hill Notation)	C22H20N2Na4O10
Impurities	≤12.5% water
Purity	≥95% (HPLC)
Fluorescence	λex 254 nm; λem 363 nm in H2O
Fluorescence	λex 274 nm; λem 363 nm (with calcium)
Solubility	H2O: soluble10 mg/mL, clear, faintly yellow
MSDS Link	Download
Personal Protective Equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Storage Temperature	-20°C
German water hazard class	3

DETAILS

Description (English)

Application
suitable as Ca2+-indicator (fluorescence suppressed by Ca2+)
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 1,2,3.
Other Notes
Chelator with a greater selectivity for calcium compared with magnesium (spectrophotometric monitoring):4

Description (简体中文)