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1384205-44-0

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1384205-44-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1384205-44-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,4,2,0 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1384205-44:
(9*1)+(8*3)+(7*8)+(6*4)+(5*2)+(4*0)+(3*5)+(2*4)+(1*4)=150
150 % 10 = 0
So 1384205-44-0 is a valid CAS Registry Number.

1384205-44-0Downstream Products

1384205-44-0Relevant articles and documents

Synthesis and properties of thermotropic liquid-crystalline polyesters containing 9,10-diphenylanthracene moiety in the main chain

Uchimura, Makoto,Ishige, Ryohei,Shigeta, Masayuki,Arakawa, Yuki,Niko, Yosuke,Watanabe, Junji,Konishi, Gen-Ichi

, p. 403 - 414 (2013)

We synthesized thermotropic liquid-crystalline polyesters in which 9,10-diphenylanthracene moieties are incorporated into the main chain type of polyester forming the chiral smectic C (Sm C*). The polymers were prepared by the isopropyltitanate-catalyzed reaction of biphenyldicarboxylic acid and the corresponding diols, with different ratios of diol of 9,10- diphenylanthracene moiety to the alkane diols (1, 5, and 10 mol %) under nitrogen atmosphere. The polymers exhibited thermotropic liquid crystals despite the presence of a bulky diphenylanthracene moiety in the main chain. The circular dichroism spectra revealed that a Sm C*phase was formed in the polymer with 1 mol % of anthracene moiety, although only an Sm A phase was formed in the other polymers. This is the first example of a Sm C*polyester containing a diphenylanthracene moiety in the main chain. Furthermore, we measured the optical properties of the polymers and found that they exhibited very high fluorescent efficiency. The fluorescence spectra of the thin film differed from that of a CH2Cl2 solution.

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