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475-71-8

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475-71-8 Usage

Chemical Properties

Brownish-yellow needles. Soluble in dilute alkaline solutions.

Uses

Vat dye for textiles, etc.

Properties and Applications

TEST ITEMS SPECIFICATION APPEARANCE YELLOW POWDER SHADE GREENISH HEAT RESISTANCE 180 °C min LIGHT FASTNESS 7 ACID RESISTANCE 5 ALKALI RESISTANCE 5 FASTNESS TO BLEEDING 5 OIL ABSORPTION 45-50% SPECIFIC SURFACE 27 m 2 /g DENSITY 1.50 g/cm 3 RESIDUE ON 80 MESH 5.0% max WATER SOLUBLE 1.0% max VOLATITE 105 °C 1.0% max TINTING STRENGTH 100-105 %

TEST ITEMS

SPECIFICATION

APPEARANCE

YELLOW POWDER

SHADE

GREENISH

HEAT RESISTANCE

180 °C min

LIGHT FASTNESS

7

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

45-50%

SPECIFIC SURFACE

27 m 2 /g

DENSITY

1.50 g/cm 3

RESIDUE ON 80 MESH

5.0% max

WATER SOLUBLE

1.0% max

VOLATITE 105 °C

1.0% max

TINTING STRENGTH

100-105 %

Check Digit Verification of cas no

The CAS Registry Mumber 475-71-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,7 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 475-71:
(5*4)+(4*7)+(3*5)+(2*7)+(1*1)=78
78 % 10 = 8
So 475-71-8 is a valid CAS Registry Number.
InChI:InChI=1/C28H12N2O2/c31-27-15-7-3-1-5-13(15)25-21-17(27)9-12-20-23(21)24-19(29-25)11-10-18-22(24)26(30-20)14-6-2-4-8-16(14)28(18)32/h1-12H

475-71-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name Benzo[h]Benz[5,6]Acridino[2,1,9,8-Klmna]Acridine-8,16-Dione

1.2 Other means of identification

Product number -
Other names BENZO(H)BENZO(5,6)ACRIDINO(2,1,9,8-KLMNA)ACRIDINE-8,16-DIONE(C.I. 70600)

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:475-71-8 SDS

475-71-8Downstream Products

475-71-8Relevant articles and documents

New flavanthrone synthesis method

-

Paragraph 0007, (2016/10/31)

The present invention discloses a new flavanthrone synthesis method belonging to the technical field of dye processing. The method is improved on the basis of a traditional process, and comprises six steps, in a condensation step, low-boiling dimethyl formamide is used, and recovery cost is reduced; an anhydrous ferric chloride and copper powder compound catalyst is used to improve reaction efficiency, and in addition, sodium chlorate and hydrochloric acid are used for removing copper, copper removing effect is good, and product competitiveness is enhanced.

Soluble Flavanthrone Derivatives: Synthesis, Characterization, and Application to Organic Light-Emitting Diodes

Kotwica, Kamil,Bujak, Piotr,Data, Przemyslaw,Krzywiec, Wojciech,Wamil, Damian,Gunka, Piotr A.,Skorka, Lukasz,Jaroch, Tomasz,Nowakowski, Robert,Pron, Adam,Monkman, Andrew

supporting information, p. 7978 - 7986 (2016/06/09)

Simple modification of benzo[h]benz[5,6]acridino[2,1,9,8-klmna]acridine-8,16-dione, an old and almost-forgotten vat dye, by reduction of its carbonyl groups and subsequent O-alkylation, yields solution-processable, electroactive, conjugated compounds of the periazaacene type, suitable for the use in organic electronics. Their electrochemically determined ionization potential and electron affinity of about 5.2 and -3.2 eV, respectively, are essentially independent of the length of the alkoxyl substituent and in good agreement with DFT calculations. The crystal structure of 8,16-dioctyloxybenzo[h]benz[5,6]acridino[2,1,9,8-klmna]acridine (FC-8), the most promising compound, was solved. It crystallizes in space group P1 and forms π-stacked columns held together in the 3D structure by dispersion forces, mainly between interdigitated alkyl chains. Molecules of FC-8 have a strong tendency to self-organize in monolayers deposited on a highly oriented pyrolytic graphite surface, as observed by STM. 8,16-Dialkoxybenzo[h]benz[5,6]acridino[2,1,9,8-klmna]acridines are highly luminescent, and all have photoluminescence quantum yields of about 80 %. They show efficient electroluminescence, and can be used as guest molecules with a 4,4′-bis(N-carbazolyl)-1,1′-biphenyl host in guest/host-type organic light-emitting diodes. The best fabricated diodes showed a luminance of about 1900 cd m-12, a luminance efficiency of about 3 cd A-1, and external quantum efficiencies exceeding 0.9 %. New life for an old dye: Simple modification of flavanthrone, an old, intractable, and almost-forgotten vat dye, by reduction of its carbonyl groups to phenolates followed by O-alkylation, gave a new group of solution-processable, electroactive, conjugated compounds (see figure). Their HOMO and LUMO energies, as well as their ionization potentials and electron affinities, make them suitable for application as components of organic light-emitting diodes.

Process for the production of pyranthrones or flavanthrones

-

, (2008/06/13)

A process for the production of pyranthrones or flavanthrones which comprises reacting substituted or unsubstituted 2,2'-dialkyl-1,1'-dianthraquinonyls or 2,2'-diacylamino-1,1'-dianthraquinonyls respectively in a two-phase system of aqueous organic solvents using quaternary ammonium or phosphonium compounds as catalysts.

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