Detail of "57125-49-2"

CAS Number:
57125-49-2
Name:
[1,1'-Biphenyl]-4-carbonitrile,4'-dodecyl-
Molecular Structure:
Formula:
C₂₅H₃₃N
Molecular Weight:
347.54
Synonyms:
12CB;4-Cyano-4'-dodecyl-1,1'-biphenyl;4-Cyano-4'-dodecylbiphenyl;4-Dodecyl-4'-cyanobiphenyl;4'-Dodecyl-4-biphenylcarbonitrile;4'-Dodecyl-4-cyanobiphenyl;CB 12;CB 12 (liquid crystal);
EINECS:
260-574-5
Density:
0.97g/cm³
Boiling Point:
484.4 °C at 760 mmHg
Flash Point:
248.7 °C

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4-Cyano-4'-dodecylbiphenyl

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Smectic liquid crystal composition for display device: Smectic liquid crystal composition for display device. Baba, Atsushi; Saito, Wataru; Nishiyama, Isa; Yoshizawa, Atsushi (Dai Nippon Printing Co., Ltd.; Japan Energy Corporation, Japan). Eur. Pat. Appl. EP 743350 A1 20 Nov 1996, 19 pp. DESIGNATED STATES: R: BE, CH, DE, ES, FR, GB, IT, LI, NL. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: ICM: C09K019-46. ICS: C09K019-54; G02F001-1333. APPLICATION: EP 1996-108027 20 May 1996. PRIORITY: JP 1995-144239 19 May 1995; JP 1996-49444 13 Feb 1996. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Section cross-reference(s): 75 A smectic liq. crystal compn. is provided which can offer a high display contrast and is less likely to cause a lowering of contrast or disappearance of display even in low temp. and high temp. regions. The liq. crystal compn. comprises at least one compd. selected from the group consisting of compds. represented by the formula I wherein R1 represents an alkyl or alkoxy group having 8-18 carbon atoms and at least one compd. selected from the group consisting of compds.Except for chemicals metioned above, 73694-05-0 is also used. represented by the formulas II-IV wherein R2, R4-6 represent alkyl groups having 2-18 carbon atoms and R3 represents an alkyl or alkoxy group having 2-18 carbon atoms. .