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
| 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 |
