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.

• 别名: 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
• 经验公式（希尔记法）: C₂₆H₂₃N₃O₁₀ · 4K
• CAS号: 73630-23-6
• 分子量: 693.87
• MDL號碼: MFCD00065487
• 分類程式碼代碼: 12352302
• NACRES: NA.25

属性

• 品質等級: 100
• 化驗: ≥95% (HPLC)
• 形狀: solid
• 製造商／商標名: Calbiochem^®
• 儲存條件: OK to freeze; protect from light
• 顏色: yellow
• 溶解度: water: 10 mg/mL
• 螢光: λ_ex 332 nm (high); λ_ex 354 nm (low); λ_em 505 nm (high); λ_em 510 nm (low)
• 運輸包裝: ambient
• 儲存溫度: −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
• InChI 密鑰: XAGUNWDMROKIFJ-UHFFFAOYSA-J

说明

一般說明

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).

生化／生理作用

Cell permeable: no

Primary Target
Calcium Probes

Product does not compete with ATP.

Reversible: no

警告

Toxicity: Irritant (B)

重構

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.

其他說明

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.

法律資訊

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

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable