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1572036-99-7

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1572036-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1572036-99-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,2,0,3 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1572036-99:
(9*1)+(8*5)+(7*7)+(6*2)+(5*0)+(4*3)+(3*6)+(2*9)+(1*9)=167
167 % 10 = 7
So 1572036-99-7 is a valid CAS Registry Number.

1572036-99-7Relevant articles and documents

Structural factors influencing the intramolecular charge transfer and photoinduced electron transfer in tetrapyrazinoporphyrazines

Novakova, Veronika,Hladik, Petr,Filandrova, Tereza,Zajicova, Ivana,Krepsova, Veronika,Miletin, Miroslav,Lenco, Juraj,Zimcik, Petr

, p. 5440 - 5446 (2014/03/21)

A series of unsymmetrical tetrapyrazinoporphyrazines (TPyzPzs) from the group of azaphthalocyanines with one peripherally attached amino substituent (donor) were synthesized, and their photophysical properties (fluorescence quantum yield and singlet oxygen quantum yield) were determined. The synthesized TPyzPzs were expected to undergo intramolecular charge transfer (ICT) as the main pathway for deactivating their excited states. Several structural factors were found to play a critical role in ICT efficiency. The substituent in the ortho position to the donor center significantly influences the ICT, with tert-butylsulfanyl and butoxy substituents inducing the strongest ICTs, whereas chloro, methyl, phenyl, and hydrogen substituents in this position reduce the efficiency. The strength of the donor positively influences the ICT efficiency and correlates well with the oxidation potential of the amines used as the substituents on the TPyzPz as follows: n-butylamine a photoinduced electron transfer in which the donor and the acceptor are connected through an aliphatic linker.

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