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385384-05-4

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385384-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 385384-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,5,3,8 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 385384-05:
(8*3)+(7*8)+(6*5)+(5*3)+(4*8)+(3*4)+(2*0)+(1*5)=174
174 % 10 = 4
So 385384-05-4 is a valid CAS Registry Number.

385384-05-4Relevant articles and documents

Synthesis and thermal properties of liquid crystalline compounds containing carbazolyl group

Matsumoto, Ken,Koide, Naoyuki

, p. 81 - 89 (2007/10/03)

New liquid crystalline compounds containing carbazolyl moiety as part of the mesogenic group were synthesized. 2-(9-Methylcarbazolyl)-4-alkoxybenzoate and 2-(9-methylcarbazolyl)-4-trifluoromethylbenzoate did not show any textures by polarizing optical microscopy (POM) measurement. However, 2-(9-methylcarbazoIyl)-4-cyanobenzoate and 2-(9-metylcarbazolyl)-4-alkanecarboxybenzoate show schlieren texture. 2-(9-methylcarbazolyl)-4-cyanobenzoate has two phase transition temperatures on both heating and cooling process. By X-ray diffraction measurement of this compound, only one weak broad peak was detected at the mesomorphic temperature in the wide-angle region. Therefore, the LC phase of the compound was assigned to a nematic. 2-(9-MethylcarbazolyI)-4-pentynyIcarboxybenzoate shows only one phase transition on heating process. However, the compound shows two phase transition temperatures on cooling processes. By X-ray diffraction measurement, the compound indicates two broad peaks at around 4.5 and 19.0 degree. These LC phases would be assigned to a cybotactic nematic phase based on the shorten molecular length of the calculated value and the optical texture.

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