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2389-64-2

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2389-64-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2389-64-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,8 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2389-64:
(6*2)+(5*3)+(4*8)+(3*9)+(2*6)+(1*4)=102
102 % 10 = 2
So 2389-64-2 is a valid CAS Registry Number.

2389-64-2Relevant articles and documents

Order Parameters of β-Substituted Anthraquinone Dyes I: 1-Amino-4-Hydroxyanthraquinone Derivatives

Imazeki, Shuji,Ono, Hitoshi,Kaneko, Masaharu,Mukoh, Akio

, p. 249 - 262 (2007/10/02)

A study is presented of the optical order parameters and spectroscopic properties of 1-amino-4-hydroxyanthraquinone derivatives containing various substituents in the 2-position in a nematic liquid crystalline mixture composed of cyanophenylcyclohexane derivatives.The results are discussed in terms of the effects of the dye structure on the order parameters.By introducing a -SCH2- group into the 2-position, magneta dyes have been obtained which show high order parameters and solubilities.In addition, preliminary data on the solubility and photostability of the dyes are reported.

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