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205181-83-5

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205181-83-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 205181-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,1,8 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 205181-83:
(8*2)+(7*0)+(6*5)+(5*1)+(4*8)+(3*1)+(2*8)+(1*3)=105
105 % 10 = 5
So 205181-83-5 is a valid CAS Registry Number.

205181-83-5Relevant articles and documents

Synthesis and study of fluorescent properties of benzothiazolylthieno- thiophene derivatives

Zavarzin,Karabaeva,Shimkina,Shorunov,Yarovenko,Platonova,Kobeleva,Valova,Barachevskii,Krayushkin

, p. 1445 - 1452 (2014/07/21)

A number of benzothiazolylthienothiophenes have been synthesized. Spectral studies have revealed that all these compounds have fluorescent properties that depend on their structure. Dependence of absorption and fluorescence bands positions on the nature of substituents have been established. Increase of the electron-withdrawing nature of substituents led to bathochromic shift of the absorption and fluorescence bands as well as to decrease of the fluorescence intensity.

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