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Type HazMat fee for 500 gram (Estimated)
Excepted Quantity USD 0.00
Limited Quantity USD 15-60
Inaccessible (Haz class 6.1), Domestic USD 80+
Inaccessible (Haz class 6.1), International USD 150+
Accessible (Haz class 3, 4, 5 or 8), Domestic USD 100+
Accessible (Haz class 3, 4, 5 or 8), International USD 200+
Chemical Structure| 58656-04-5 Chemical Structure| 58656-04-5
Chemical Structure| 58656-04-5

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Product Citations

Product Citations

William E. Meador ; Timothy A. Lewis ; Abdul K. Shaik ; Kalpani Hirunika Wijesinghe ; Boqian Yang ; Amala Dass , et al.

Abstract: Fluorescence-based biological imaging in the shortwave infrared (SWIR, 1000–1700 nm) is an attractive replacement for modern in vivo imaging techniques currently employed in both medical and research settings. Xanthene-based fluorophores containing heterocycle donors have recently emerged as a way to access deep SWIR emitting fluorophores. A concern for xanthene-based SWIR fluorophores though is chemical stability toward ambient nucleophiles due to the high electrophilicity of the cationic fluorophore core. Herein, a series of SWIR emitting silicon-rosindolizine (SiRos) fluorophores with emission maxima >1300 nm (up to 1550 nm) are synthesized. The SiRos fluorophore photophysical properties and chemical stability toward nucleophiles are examined through systematic derivatization of the silicon-core alkyl groups, indolizine donor substitution, and the use of o-tolyl or o-xylyl groups appended to the fluorophore core. The dyes are studied via absorption spectroscopy, steady-state emission spectroscopy, solution-based cyclic voltammetry, time-dependent density functional theory (TD-DFT) computational analysis, X-ray diffraction crystallography, and relative chemical stability over time. Optimal chemical stability is observed via the incorporation of the 2-ethylhexyl silicon substituent and the o-xylyl group to protect the core of the fluorophore.

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Product Details of Tricyclohexylphosphonium tetrafluoroborate

CAS No. :58656-04-5
Formula : C18H34BF4P
M.W : 368.24
SMILES Code : F[B-](F)(F)F.[PH+](C1CCCCC1)(C2CCCCC2)C3CCCCC3
MDL No. :MFCD03840580
InChI Key :MYSMMEUXKHJYKH-UHFFFAOYSA-O
Pubchem ID :11710396

Safety of Tricyclohexylphosphonium tetrafluoroborate

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H302-H314
Precautionary Statements:P260-P280-P303+P361+P353-P301+P330+P331-P304+P340+P310-P305+P351+P338+P310
Class:8
UN#:1759
Packing Group:
 

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