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139112-83-7

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139112-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139112-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,1 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 139112-83:
(8*1)+(7*3)+(6*9)+(5*1)+(4*1)+(3*2)+(2*8)+(1*3)=117
117 % 10 = 7
So 139112-83-7 is a valid CAS Registry Number.

139112-83-7Downstream Products

139112-83-7Relevant articles and documents

Synthesis and Characterization of some 1,4,8,11,15,18,22,25-Octa(alkoxymethyl)phthalocyanines; a New Series of Discotic Liquid Crystals

Cammidge, Andrew N.,Cook, Michael J.,Harrison, Kenneth J.,McKeown, Neil B.

, p. 3053 - 3058 (2007/10/02)

A series of 3,6-bis(alkoxymethyl)phthalonitriles, prepared via Diels-Alder reactions of 2,5-bis(alkoxymethyl)furans with fumaronitrile, have been converted into the corresponding phthalocyanines.Zn(II) and Cu(II) derivatives of 1,4,8,11,15,18,22,25-octa(heptyloxymethyl)phthalocyanine were also prepared.Examples of the macrocycles were characterised using 1H NMR spectrometry and optical spectroscopy.Those bearing straight chains aggregate in solutions of chloroform and toluene.The octa(butoxymethyl)phthalocyanine and its longer chain homologues exhibit a discotic liquid crystalline phase.Compounds containing branched sidechains are liquid crystals at room temperature.

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