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188179-82-0

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188179-82-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188179-82-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,1,7 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 188179-82:
(8*1)+(7*8)+(6*8)+(5*1)+(4*7)+(3*9)+(2*8)+(1*2)=190
190 % 10 = 0
So 188179-82-0 is a valid CAS Registry Number.

188179-82-0Upstream product

188179-82-0Relevant articles and documents

Spiroconjugated charge-transfer dyes for optical applications

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, (2008/06/13)

New intramolecular charge-transfer organic dyes are described. The design of these molecules is based on the phenomenon of spiroconjugation, and it provides a modular approach to the preparation of unique materials with interesting optical properties. In the dyes of the invention, the lowest unoccupied molecular orbital (LUMO) of the acceptor part (based on indandione) is spiroconjugated with the highest unoccupied molecular orbital (HOMO) of the donor part (amines, alcohols and thiols). The interaction between the donor and acceptor is controlled by the energy and symmetry of the frontier orbitals. The novel dyes described herein, with predictable and tunable optical properties, can be used in many optical applications including nonlinear optics (NLO).

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