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118677-47-7

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118677-47-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118677-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,6,7 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 118677-47:
(8*1)+(7*1)+(6*8)+(5*6)+(4*7)+(3*7)+(2*4)+(1*7)=157
157 % 10 = 7
So 118677-47-7 is a valid CAS Registry Number.

118677-47-7Downstream Products

118677-47-7Relevant articles and documents

Symmetrical dimer liquid crystals derived from benzoxazoles

Liao, Cheng-Chung,Wang, Chung-Shu,Sheu, Hwo-Shuenn,Lai, Chung K.

, p. 7977 - 7985 (2008/12/20)

A series of dimeric twin liquid crystals derived from symmetric heterocyclic benzoxazoles 1a-1f exhibiting single smectic C phase are reported. All benzoxazoles were prepared by condensation of 2-aminophenols with benzaldehydes and then followed by subsequent intramolecular cyclization. The mesomorphic properties were investigated by DSC and POM, and the structure of the mesophases was confirmed as smectic C phases by powder XRD. The formation of mesophases was attributed to the weak dipole force induced by donor-acceptor interaction (D→A). A monolayer conformation was proposed based on the powder XRD data. A value of aspect ratio d/l=0.80-0.92 was calculated from d-spacings and the molecular lengths. By contrast, the odd-even effects by a value of entropy changes ΔSSmC→I/R=2.00-6.50 showing odd-even effect for the transition of SmC→I phases were also associated in twin system.

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