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17745-91-4

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  • 3-hydroxy-4-[1-[2-[(1E)-1-(2-hydroxy-4-oxo-1-cyclohexa-2,5-dienylidene)ethyl]hydrazinyl]ethylidene]cyclohexa-2,5-dien-1-one

    Cas No: 17745-91-4

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  • 3-hydroxy-4-[1-[2-[(1E)-1-(2-hydroxy-4-oxo-1-cyclohexa-2,5-dienylidene)ethyl]hydrazinyl]ethylidene]cyclohexa-2,5-dien-1-one cas 17745-91-4

    Cas No: 17745-91-4

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17745-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17745-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,4 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17745-91:
(7*1)+(6*7)+(5*7)+(4*4)+(3*5)+(2*9)+(1*1)=134
134 % 10 = 4
So 17745-91-4 is a valid CAS Registry Number.

17745-91-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name (4Z)-3-hydroxy-4-[1-[2-[(1E)-1-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)ethyl]hydrazinyl]ethylidene]cyclohexa-2,5-dien-1-one

1.2 Other means of identification

Product number -
Other names 4,4'-Bis-dimethylsilyl-diphenylaether

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:17745-91-4 SDS

17745-91-4Relevant articles and documents

SYNTHESIS AND MESOMORPHIC PROPERTIES OF THREE HOMOLOGOUS SERIES OF 4,4 prime -DIALKOXY- alpha , alpha prime -DIMETHYLBENZALAZINES.

Marcos,Melendez,Serrano

, p. 157 - 172 (2007/10/02)

Three homologous series of alpha , alpha prime -dimethylbenzalazines have been synthesized: 4,4 prime -dialkoxy- alpha , alpha prime -dimethylbenzalazines, 4,4 prime -dialkoxy-2,2 prime -dihydroxy- alpha , alpha prime -dimethylbenzalazines, and 4,4 prime -dialkoxy-2-hydroxy- alpha , alpha prime -dimethylbenzalazines. The influence of molecular structure on the mesomorphic properties was studied. Mesomorphic properties and phase transitions were determined using a polarizing hot-stage microscope and a differential scanning calorimeter. The introduction of one or two hydroxyl groups in position 2- or 2-and 2 prime -of the aromatic rings (4,4 prime -dialkoxy-2-hydroxy- alpha , alpha prime -dimethylbenzalazines and 4,4 prime -dialkoxy-2,2 prime -dihydroxy- alpha , alpha prime -dimethylbenzalazines respectively) gives molecules with an excellent mesogenic quality, and all the prepared compounds of these series exhibit mesomorphism. Compounds of the series with two hydroxyl groups exhibit smectic polymorphism which is not so in the case of the compounds of the other series. The melting temperatures are systematically lower for the 4,4 prime -dialkoxy-2-hydroxy- alpha , alpha prime -dimethylbenzalazines than for the other two series.

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