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121609-53-8

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121609-53-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121609-53-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,0 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121609-53:
(8*1)+(7*2)+(6*1)+(5*6)+(4*0)+(3*9)+(2*5)+(1*3)=98
98 % 10 = 8
So 121609-53-8 is a valid CAS Registry Number.

121609-53-8Downstream Products

121609-53-8Relevant articles and documents

Synthesis and Liquid Crystal Properties of Dimethylene Linked Compounds Incorporating the Cyclobutane or Spiroheptane Rings

Chan, L. K. M.,Gemmell, P. A.,Gray, G. W.,Lacey, D.,Toyne, K. J.

, p. 229 - 246 (2007/10/02)

The preparation of sixteen dimethylene linked compounds is described heptane ring>, and a comparison is made between the transition temperatures of these compounds and those of the corresponding esters.This comparison once again highlights the fact that the cyclobutane ring should be regarded, in terms of its ability to promote nematic thermal stability, as a "chain stiffener rather than as a ring system.A comparison is also made of the nematic thermal stabilities of the trans-cyclobutane and the spiroheptane systems and of the trans-cyclohexane and the spiroundecane systems.

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