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Vat Black 25

  • CAS：4395-53-3
  • purity：99%
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Good factory exports good Vat Black 25 4395-53-3

  • Molecular Formula: C45H22N2O5
  • Molecular Weight: 670.68
  • Refractive Index: 1.826 
  • PKA: -2.72±0.20(Predicted) 
  • PSA： 130.24000 
  • Density: 1.527 g/cm3 
  • LogP: 8.09390 

Vat Black 25(Cas 4395-53-3) Usage

Preparation

1-Aminoanthracene-9,10-dione (2 Moore) and 3,9-Dibromo-7H-benzo[de]anthracen-7-one in boiling naphthalene, in copper oxide and Sodium carbonate under the existence of condensation,?And then boiling isobutanol cyclization with potassium hydroxide.

Standard

Ironing Fastness

Fading

Stain

ISO

4

AATCC

5

Properties and Applications

brown light grey. Brown powder. In concentrated sulfuric acid for green, dilution after black precipitation; In concentrated nitric acid for the red light brown. Alkaline reduction leuco for grey; Acid reduction leuco for dark olive. Mainly used in cotton fiber dyeing, generally not used for printing. Suitable for suspension pad dyeing, and other dye spell dyed all kinds of noise, leuco can dye cotton yarn, but also can be used for silk and wool dyeing, and have a good washing fastness and fastness to sunlight. Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping Fading Stain ISO 4 4 8 5 4 4-5 5 AATCC 5 4 7-8 5 4-5

InChI:InChI=1/C45H22N2O5/c48-41-26-6-1-3-8-28(26)44(51)38-30(41)10-5-11-34(38)46-21-12-13-22-23-18-19-35-37-24(14-16-31(36(23)37)43(50)33(22)20-21)25-15-17-32-39(40(25)47-35)45(52)29-9-4-2-7-27(29)42(32)49/h1-20,46-47H

4395-53-3 Process route

3-(anthraquinon-1-ylamino)anthra(2,1,9-mna)naphth[2,3-h]acridine-5,10,15(16H)-trione
4395-53-3

3-(anthraquinon-1-ylamino)anthra(2,1,9-mna)naphth[2,3-h]acridine-5,10,15(16H)-trione

Conditions
Conditions Yield
3-Amino-anthra <2.1.9-mna> naphtha <2.3-h> acridin-5,10,15(16H)-trion (VIe), α-Chloranthrachinon, Naphthalin, Na2CO3, CO ;
3,9-Bis- <1-anthrachinonylamino> -benzanthron (Vc), KOH, Isobutanol;

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