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6684-16-8

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6684-16-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6684-16-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,8 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6684-16:
(6*6)+(5*6)+(4*8)+(3*4)+(2*1)+(1*6)=118
118 % 10 = 8
So 6684-16-8 is a valid CAS Registry Number.

6684-16-8Relevant articles and documents

COMPOUNDS FOR PHOTODYNAMIC THERAPY AND RELATED USES

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Page/Page column 33; 34, (2020/06/10)

Disclosed herein are symmetrical and unsymmetrical carbocyanine dyes. Irradiation of the dyes generates reactive species which contribute to DNA damage. The dyes are useful for the treatment of various cancers and cell growth disorders.

Polymethine Thiopyrylium Fluorophores with Absorption beyond 1000 nm for Biological Imaging in the Second Near-Infrared Subwindow

Ding, Bingbing,Xiao, Yuling,Zhou, Hui,Zhang, Xiao,Qu, Chunrong,Xu, Fuchun,Deng, Zixin,Cheng, Zhen,Hong, Xuechuan

, p. 2049 - 2059 (2019/01/04)

Small-molecule fluorescence imaging in the second near-infrared (NIR-II, 1000-1700 nm) window has gained increasing interest in clinical application. Till now, very few studies have been exploited in the small-molecule fluorophores with both excitation and emission in the NIR-II window. Inspired by the indocyanine green structure, a series of polymethine dyes with both absorption and emission in the NIR-II window have been developed for NIR-II imaging, providing the feasibility to directly compare optical imaging in the NIR-IIa (1300-1400 nm) subwindow under 1064 nm excitation with that in the NIR-II window under 808 nm excitation. The signal-background ratio and the tumor-normal tissue ratio achieved great improvement under 1064 nm excitation in the imaging of mouse blood pool and U87 glioma tumors. Our study not only introduces a broadband emission fluorophore for both NIR-II and NIR-IIa imaging, but also reveals the advantages of NIR-II excitation over NIR-I in in vivo imaging.

Near-Infrared Illumination of Native Tissues for Image-Guided Surgery

Owens, Eric A.,Hyun, Hoon,Dost, Tyler L.,Lee, Jeong Heon,Park, Gwangli,Pham, Dang Huan,Park, Min Ho,Choi, Hak Soo,Henary, Maged

, p. 5311 - 5323 (2016/07/06)

Our initial efforts to prepare tissue-specific near-infrared (NIR) fluorescent compounds generated successful correlation between physicochemical properties and global uptake in major organs after systemic circulation and biodistribution. Herein, we focus on the effects on biodistribution based on modulating electronic influencing moieties from donating to withdrawing moieties at both the heterocyclic site and through meso-substitution of pentamethine cyanine fluorophores. These selected modifications harnessed innate biodistribution pathways through the structure-inherent targeting, resulting in effective imaging of the adrenal glands, pituitary gland, lymph nodes, pancreas, and thyroid and salivary glands. These native-tissue contrast agents will arm surgeons with a powerful and versatile arsenal for intraoperative NIR imaging in real time.

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