Actively helping customers, employees and the global community during the coronavirus SARS-CoV-2 outbreak.  Learn more >>

Calcein *UltraPure Grade* *CAS 154071-48-4*

Chemical structure for Calcein *UltraPure Grade* *CAS 154071-48-4*
Chemical structure for Calcein *UltraPure Grade* *CAS 154071-48-4*
Ordering information
Price ()
Catalog Number22001
Unit Size
Find Distributor
Additional ordering information
Telephone1-408-733-1055
Fax1-408-733-1304
Emailsales@aatbio.com
InternationalSee distributors
ShippingStandard overnight for United States, inquire for international
Physical properties
Molecular weight622.53
SolventDMSO
Spectral properties
Extinction coefficient (cm -1 M -1)81000
Excitation (nm)501
Emission (nm)521
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12352200

OverviewpdfSDSpdfProtocol


CAS
154071-48-4
Molecular weight
622.53
Extinction coefficient (cm -1 M -1)
81000
Excitation (nm)
501
Emission (nm)
521
Calcein, also known as fluorexon, fluorescein complex, is a fluorescent calcium indicator with an excitation and emission wavelengths of 495 and 515nm respectively. Calcein self-quenches at concentrations above 100 mM. It is used as a complexometric indicator for titration of calcium ions with EDTA, and for fluorimetric determination of calcium. It is slightly soluble in water. The proton dissociation constants are reported to be pKa1=2.1, pKa2=2.9, pKa3=4.2, pKa4=5.5, pKa5=10.8 and pKa6=11.7. Calcein solution emits a yellowish-green fluorescence in acidic conditions, and no fluorescence in basic conditions. However, calcein emits fluorescence in the presence of metal ions such as Al, Ba, Cu, Mg and Zn in basic conditions. Therefore, calcein can also be used for direct fluorimetric titration of these heavy metal ions besides Ca.

Calculators


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Calcein *UltraPure Grade* *CAS 154071-48-4* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM160.635 µL803.174 µL1.606 mL8.032 mL16.063 mL
5 mM32.127 µL160.635 µL321.27 µL1.606 mL3.213 mL
10 mM16.063 µL80.317 µL160.635 µL803.174 µL1.606 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles
/=x=

Spectrum


Open in Advanced Spectrum Viewer
spectrum

Spectral properties

Extinction coefficient (cm -1 M -1)81000
Excitation (nm)501
Emission (nm)521

Citations


View all 17 citations: Citation Explorer
Functional imaging of neuronal activity of auditory cortex by using Cal-520 in anesthetized and awake mice
Authors: Li, Jingcheng and Zhang, Jianxiong and Wang, Meng and Pan, Junxia and Chen, Xiaowei and Liao, Xiang
Journal: Biomedical Optics Express (2017): 2599--2610
NINJ2--A novel regulator of endothelial inflammation and activation
Authors: Wang, Jingjing and Fa, Jingjing and Wang, Pengyun and Jia, Xinzhen and Peng, Huixin and Chen, Jing and Wang, Yifan and Wang, Chenhui and Chen, Qiuyun and Tu, Xin and others, undefined
Journal: Cellular Signalling (2017)
Influence of hypothermia and subsequent rewarming upon leukocyte-endothelial interactions and expression of Junctional-Adhesion-Molecules A and B
Authors: Bogert, Nicolai V and Werner, Isabella and Kornberger, Angela and Meybohm, Patrick and Moritz, Anton and Keller, Till and Stock, Ulrich A and Beiras-Fern, undefined and ez, Andres
Journal: Scientific reports (2016)
Inhibition of ABC transport proteins by oil sands process affected water
Authors: Alharbi, Hattan A and Saunders, David MV and Al-Mousa, Ahmed and Alcorn, Jane and Pereira, Alberto S and Martin, Jonathan W and Giesy, John P and Wiseman, Steve B
Journal: Aquatic Toxicology (2016): 81--88
Rapid generation of collagen-based microtissues to study cell--matrix interactions
Authors: Brett, Marie-Elena and Crampton, Alex and ra L , undefined and Wood, David K
Journal: Technology (2016): 1--8
Toxicokinetics and toxicodynamics of chlorpyrifos is altered in embryos of Japanese medaka exposed to oil sands process-affected water: evidence for inhibition of P-glycoprotein
Authors: Alharbi, Hattan A and Alcorn, Jane and Al-Mousa, Ahmed and Giesy, John P and Wiseman, Steve B
Journal: Journal of Applied Toxicology (2016)
Flexible Endoscopic Spray Application of Respiratory Epithelial Cells as Platform Technology to Apply Cells in Tubular Organs
Authors: Thiebes, Anja Lena and Reddemann, Manuel Armin and Palmer, Johannes and Kneer, Reinhold and Jockenhoevel, Stefan and Cornelissen, Christian Gabriel
Journal: Tissue Engineering Part C: Methods (2016): 322--331
Erythropoietin Stimulates Endothelial Progenitor Cells to Induce Endothelialization in an Aneurysm Neck After Coil Embolization by Modulating Vascular Endothelial Growth Factor
Authors: Liu, Peixi and Zhou, Yingjie and An, Qingzhu and Song, Yaying and Chen, Xi and Yang, Guo-Yuan and Zhu, Wei
Journal: MEDICINE (2016): 1--8
Spraying respiratory epithelial cells to coat tissue-engineered constructs
Authors: Thiebes, Anja Lena and Albers, Stefanie and Klopsch, Christian and Jockenhoevel, Stefan and Cornelissen, Christian G
Journal: BioResearch open access (2015): 278--287
Visualization of adherent cell monolayers by cryo-electron microscopy: A snapshot of endothelial adherens junctions
Authors: Le Bihan, Olivier and Decossas, Marion and Gontier, Etienne and Gerbod-Giannone, Marie-Christine and Lambert, Olivier
Journal: Journal of structural biology (2015): 470--477

References


View all 84 references: Citation Explorer
Functional evidence that the self-renewal gene NANOG regulates esophageal squamous cancer development
Authors: Li, Deng and Xiang, Xiaocong and Yang, Fei and Xiao, Dongqin and Liu, Kang and Chen, Zhu and Zhang, Ruolan and Feng, Gang
Journal: Biochemical and Biophysical Research Communications (2017)
Localized functional chemical stimulation of TE 671 cells cultured on nanoporous membrane by calcein and acetylcholine
Authors: Zibek S, Stett A, Koltay P, Hu M, Zengerle R, Nisch W, Stelzle M.
Journal: Biophys J. (2006)
A vaccination and challenge model using calcein marked fish
Authors: Klesius PH, Evans JJ, Shoemaker CA, Pasnik DJ.
Journal: Fish Shellfish Immunol (2006): 20
Novel fluorescence assay using calcein-AM for the determination of human erythrocyte viability and aging
Authors: Bratosin D, Mitrofan L, Palii C, Estaquier J, Montreuil J.
Journal: Cytometry A (2005): 78
Cytotoxic effects of 100 reference compounds on Hep G2 and HeLa cells and of 60 compounds on ECC-1 and CHO cells. I mechanistic assays on ROS, glutathione depletion and calcein uptake
Authors: Schoonen WG, Westerink WM, de Roos JA, Debiton E.
Journal: Toxicol In Vitro (2005): 505
Calcein AM release-based cytotoxic cell assay for fish leucocytes
Authors: Iwanowicz LR, Densmore CL, Ottinger CA.
Journal: Fish Shellfish Immunol (2004): 127
Calcein-AM is a detector of intracellular oxidative activity
Authors: Uggeri J, Gatti R, Belletti S, Sc and roglio R, Corradini R, Rotoli BM, Orl and ini G., undefined
Journal: Histochem Cell Biol (2004): 499
Comparison of the usefulness of the MTT, ATP, and calcein assays to predict the potency of cytotoxic agents in various human cancer cell lines
Authors: Mueller H, Kassack MU, Wiese M.
Journal: J Biomol Screen (2004): 506
In vitro assay of mineralized-tissue formation on titanium using fluorescent staining with calcein blue
Authors: Goto T, Kajiwara H, Yoshinari M, Fukuhara E, Kobayashi S, Tanaka T.
Journal: Biomaterials (2003): 3885
The effects of calcium chloride and sodium chloride on the electroporation-mediated skin permeation of fluorescein isothiocyanate (FITC)-dextrans in vitro
Authors: Tokudome Y, Sugibayashi K.
Journal: Biol Pharm Bull (2003): 1508

Application notes


Annexin V