551826

QUIN 2, Tetrapotassium Salt

Binding of Ca²⁺ leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield.

• Sinônimo(s): QUIN 2, Tetrapotassium Salt, 2-{[2- bis(Carboxymethyl)amino-5-methylphenoxy]methyl}-6-methoxy-8- bis(carboxymethyl)aminoquinoline, 4K, 2-{[2-bis(Carboxymethyl)amino-5-methylphenoxy]methyl}-6-methoxy-8-bis(carboxymethyl)aminoquinoline, 4K
• Fórmula empírica (Notação de Hill): C₂₆H₂₃N₃O₁₀ · 4K
• Número CAS: 73630-23-6
• Peso molecular: 693.87
• Número MDL: MFCD00065487
• Código UNSPSC: 12352302
• NACRES: NA.25

Propriedades

• Nível de qualidade: 100
• Ensaio: ≥95% (HPLC)
• forma: solid
• fabricante/nome comercial: Calbiochem^®
• condição de armazenamento: OK to freeze; protect from light
• cor: yellow
• solubilidade: water: 10 mg/mL
• fluorescência: λ_ex 332 nm (high); λ_ex 354 nm (low); λ_em 505 nm (high); λ_em 510 nm (low)
• Condições de expedição: ambient
• temperatura de armazenamento: −20°C
• InChI: 1S/C26H27N3O10.4K/c1-15-3-6-19(28(10-22(30)31)11-23(32)33)21(7-15)39-14-17-5-4-16-8-18(38-2)9-20(26(16)27-17)29(12-24(34)35)13-25(36)37;;;;/h3-9H,10-14H2,1-2H3,(H,30,31)(H,32,33)(H,34,35)(H,36,37);;;;/q;4*+1/p-4
• chave InChI: XAGUNWDMROKIFJ-UHFFFAOYSA-J

Descrição

Descrição geral

Binding of Ca²⁺ leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield. TPEN (Cat. No. 616394) can be used in conjunction with QUIN 2 to reduce heavy-metal quenching of QUIN 2 fluorescence in cells.

Binding of Ca²⁺ to QUIN 2 leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield. TPEN (Cat. No. 616394) can be used in conjunction with QUIN 2 to reduce heavy-metal quenching of QUIN 2 fluorescence in cells. Spectral properties in the presence of low calcium concentrations (ex. 354 nm, em. 510 nm) differ from those during high calcium conditions (ex. 332 nm, em. 505 nm).

Ações bioquímicas/fisiológicas

Cell permeable: no

Primary Target
Calcium Probes

Product does not compete with ATP.

Reversible: no

Advertência

Toxicity: Irritant (B)

Reconstituição

Following reconstitution, aliquot and freeze (-20°C) under an inert gas, pH >10. Stock solutions are stable for up to 6 months at -20°C.

Outras notas

Komada, H., et al. 1989. Cell Struct. Funct. 14, 141.
Vijayaraghavan, S. and Hoskins, D. 1989. Cell Calcium10, 241.
Arslan, P., et al. 1985. J. Biol. Chem.260, 2719.
Bryant, D.T. 1985. Biochem. J.226, 613.
Grynkiewicz, G., et al. 1985. J. Biol. Chem.260, 3440.
Ashley R.H., et al. 1984. Biochem. J.219, 149.
Tsien, R.Y., et al. 1982. J. Cell Biol.94, 325.
Tsien, R.Y. 1980. Biochemistry19, 2396.

Informações legais

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable