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14638-68-7

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14638-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14638-68-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,6,3 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 14638-68:
(7*1)+(6*4)+(5*6)+(4*3)+(3*8)+(2*6)+(1*8)=117
117 % 10 = 7
So 14638-68-7 is a valid CAS Registry Number.

14638-68-7Relevant articles and documents

Synthesis and conformation properties of alkylene-aromatic poly(ether esters) with nonlinear hetaryl-containing mesogenic fragments in the backbone

Bushin,Andreeva,Strelina,Rudaya,Chernienko,Ramsh,Shamanin

, p. 832 - 839 (2011)

A thermotropic mesogenic alkylene-aromatic poly(ether ester) was prepared by phase-transfer polycondensation of the azomethine derived from 5-amino-2-phenylbenzoxazole and 3,4-dihydroxybenzaldehyde with 1,6-bis(4-chlorocarbonylphenoxy)hexane in the presen

SYNTHESIS AND PROPERTIES OF LIQUID CRYSTALLINE POLYESTERS WITH Y-SHAPED MESOGENS

Roetz, Uwe,Lindau, Juergen,Diele, Siegmar,Reinhold, Guenter,Kuschel, Frank

, p. 229 - 234 (2007/10/02)

A number of new liquid crystalline polymers characterized by triad ester segments as mesogenic main chain units connected together by polymethylene spacers and endowed with lateral groups consisting of a rigid azobenzene part and different substituents we

Thermotropic Compounds having Two Terminal Mesogenic Units and Central Spacers. Part 7. Homologous α,ω-Bis--alkenes

Jin, Jung-Il,Oh, Heung-Tak,Park, Joo-Hoon

, p. 343 - 348 (2007/10/02)

A homologous series of α,ω-bis-alkanes was prepared; their thermal and liquid crystalline properties were studied by differential scanning calorimetry and on the hotstage of a polarizing microscope.The nature of the liq

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