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6-DTAF [6-(4,6-Dichlorotriazinyl)aminofluorescein] *CAS 118357-32-7*

Compared to 5-DTAF, the 6-isomer is more preferably used for labeling oligonucleotides and nucleic acids. Like 5-DTAF, 6-DTAF not only reacts with amino groups, but also reacts with thiol groups and even directly reacts with hydroxy groups such as polysaccharides and other alcohols in aqueous solution at pH above 9. Due to its high reactivity, 6-DTAF is also used to label carbohydrates.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of 6-DTAF [6-(4,6-Dichlorotriazinyl)aminofluorescein] *CAS 118357-32-7* 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 mM201.906 µL1.01 mL2.019 mL10.095 mL20.191 mL
5 mM40.381 µL201.906 µL403.812 µL2.019 mL4.038 mL
10 mM20.191 µL100.953 µL201.906 µL1.01 mL2.019 mL

Molarity calculator

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Spectrum

References

View all 30 references: Citation Explorer
Fluorescently labeled collagen binding proteins allow specific visualization of collagen in tissues and live cell culture
Authors: Krahn KN, Bouten CV, van Tuijl S, van Z and voort MA, Merkx M.
Journal: Anal Biochem (2006): 177
Mitomycin C alters corneal stromal wound healing and corneal haze in rabbits after argon-fluoride excimer laser photorefractive keratectomy
Authors: Lai YH, Wang HZ, Lin CP, Chang SJ.
Journal: J Ocul Pharmacol Ther (2004): 129
Fluorescent cellulose microfibrils as substrate for the detection of cellulase activity
Authors: Helbert W, Chanzy H, Husum TL, Schulein M, Ernst S.
Journal: Biomacromolecules (2003): 481
Microbial activity in soils following steam treatment
Authors: Richardson RE, James CA, Bhupathiraju VK, Alvarez-Cohen L.
Journal: Biodegradation (2002): 285
Effect of collagenase inhibitors on corneal haze after PRK
Authors: Corbett MC, O'Brart DP, Patmore AL, Marshall J.
Journal: Exp Eye Res (2001): 253
Page updated on December 17, 2024

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Physical properties

Molecular weight

495.28

Solvent

DMSO

Spectral properties

Absorbance (nm)

487

Correction Factor (260 nm)

0.32

Correction Factor (280 nm)

0.35

Extinction coefficient (cm -1 M -1)

800001

Excitation (nm)

498

Emission (nm)

517

Quantum yield

0.79001, 0.952

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501

CAS

118357-32-7
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