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Chemical structure of BTC (potassium salt)

GC42984

BTC (potassium salt)

Also known as tetrapotassium;2-[2-[2-[3-(1,3-benzothiazol-2-yl)-7-[bis(carboxylatomethyl)amino]-2-oxochromen-6-yl]oxyethoxy]-N-(carboxylatomethyl)-4-methylanilino]acetate

BTC (potassium salt) is a low affinity calcium indicator (Kd approximately 7-26 μM) featuring many desirable properties for cellular calcium imaging, including long excitation wavelengths (400/485 nm), low sensitivity to Mg2+, and accuracy of ratiometric measurement

ChemicalCAS216453-54-2MW844FormulaC33H25N3O12S•4K
CAS number
216453-54-2
Molecular weight
844
Formula
C33H25N3O12S•4K
Solubility
Water： Soluble
InChIKey
NVHVYTMJZUGPBU-UHFFFAOYSA-J
Catalogue number
GC42984
Brand
GLPBIO
Computed properties PubChem CID 132285214 · TPSA 253 Ų · H-bond donors 0 · H-bond acceptors 16
TPSA
253 Ų
H-bond donors
0
H-bond acceptors
16
Rotatable bonds
12
Heavy atoms
53

SMILES CC1=CC(=C(C=C1)N(CC(=O)[O-])CC(=O)[O-])OCCOC2=C(C=C3C(=C2)C=C(C(=O)O3)C4=NC5=CC=CC=C5S4)N(CC(=O)[O-])CC(=O)[O-].[K+].[K+].[K+].[K+]

Computed descriptors from PubChem (CID 132285214), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

Ordering in Israel

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