Quin 2

Call for price

Chemical Name: 8-Amino-2-[(2-amino-5-methylphenoxy)methyl]-6-methoxyquinoline-N,N,N’,N’-tetraacetic acid, tetrapotassium salt
CAS: 73630-23-6

Appearance: pale yellow powder
Purity: ≥95.0 %(HPLC)
MW: 693.87, C26H23K4N3O10

Storage Condition: ambient temperature, protect from light and moisture
Shipping Condition: ambient temperature


Mix and match products can be applied.
You must enter coupon code on your order to receive the discount!
・Summer 21-2 (for buying 2)
・Summer 21-3 (for buying 3 and more)
(Can not be combined with any other offer or special pricing products.)

Product Description
Quin 2 forms a stable fluorescent complex with calcium (logKCaY=7.1), but not with magnesium (logMgY=2.7). The complex has a high quantum yield (0.14) at emission wavelength 525 nm, excitation wavelength 339 nm, and emission wavelength 492 nm. Quin 2-AM is an acetoxymethyl ester derivative of Quin 2 that is readily permeable through cell membranes. Within the cell, the ester is hydrolyzed to Quin 2.

Calcium Chelation

1) R. Y. Tsien, New Calcium Indicators and Buffers with High Selectivity against Magnesium and Protons: Design, Synthesis, and Properties of Prototype Structures. Biochemistry. 1980;19:2396-2404.
2) R. Y. Tsien, et al., Calcium Homeostasis in Intact Lymphocytes: Cytoplasmic Free Calcium Monitored with a New, Intracellularly Trapped Fluorescent Indicator. J Cell Biol. 1982;94:325-334.
3) M. B. Feinstein, et al., The Cytoplasmic Concentration of Free Calcium Inplatelets Is Controlled by Stimulators of Cyclic AMP Production (PGD2, PGE1, FORSKOLIN). Biochem Biophys Res Commun. 1983;113:598-604.
4) N. Miyoshi, et al., A New Method of Determining Intracellular Free Ca2+ Concentration Using Quin2-fluorescence. Photochem Photobiol. 1991;53:415-418.

Related Categories
Intracellular Fluorescent Probes

Related Products

COVID-19 Announcement

Due to rising concerns regarding the COVID-19 (Coronavirus 2019) outbreak, Dojindo Molecular Technologies, Inc will be taking the necessary steps to prioritize public health and safety.

Scroll to Top