131-92-0 Usage
Preparation
N-(5-chloro-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide and N-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide Condensation in the presence of copper, and then cyclized with sulfuric acid.
General Description
Odorless brown to dark brown powder.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Vat Brown 3 is incompatible with oxidizing and reducing agents. .
Fire Hazard
Flash point data for Vat Brown 3 are not available. Vat Brown 3 is probably combustible.
Flammability and Explosibility
Notclassified
Properties and Applications
brown. Deep red powder. Insoluble in water and Etanol, slightly soluble in Xylene for bordeaux red solution. In concentrated sulfuric acid for dark wine red, dilution to red light brown, flocks. Alkaline reduction leuco body for the color red; Acid reduction leuco for yellow brown. Is light brittle dye. To cotton affinity is poorer, less used in cotton dyeing. Suitable for direct printing, resist printing and aniline black color resist, also suitable for shallow, color of discharge. Suitable for cotton knits dyeing, more suitable for silk printing. But printing and dyeing fabric in sunlight exposure easy appear fiber brittle damage phenomenon. Can be used for viscose and wool dyeing, can also be processed into organic pigment.
Standard
Ironing Fastness
Chlorine bleach
Light Fastness
Mercerized
Oxygen bleach
Soaping
Fading
Stain
ISO
5
5
7
4-5
4-5
5
5
AATCC
5
5
7-8
4-5
4-5
Standard
Ironing Fastness
Fading
Stain
ISO
5
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 131-92-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131-92:
(5*1)+(4*3)+(3*1)+(2*9)+(1*2)=40
40 % 10 = 0
So 131-92-0 is a valid CAS Registry Number.
InChI:InChI=1/C42H23N3O6/c46-37-24-14-7-8-15-25(24)38(47)34-33(37)30(44-42(51)22-12-5-2-6-13-22)20-28-23-18-19-27-32(35(23)45-36(28)34)40(49)26-16-9-17-29(31(26)39(27)48)43-41(50)21-10-3-1-4-11-21/h1-20,45H,(H,43,50)(H,44,51)
131-92-0Relevant articles and documents
PREPARATION METHOD OF ORIGINAL DYE OF VAT BROWN R
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Page/Page column 6, (2012/12/13)
A preparation method of original dye of Vat Brown R comprises the following steps: a. after acylation of 1,5-diaminoanthraquinone, 1-amino-5-benzamidoanthraquinone was prepared by acidic hydrolysis; b. 1-benzamido-4-bromoanthraquinone was obtained from 1-aminoanthraquinone by acylation and bromination; c. a condensate of Vat Brown R was obtained by condensation reaction of 1-amino-5-benzamidoanthraquinone and 1-benzamido-4-bromoanthraquinone; d. the original dye of Vat Brown R was obtained from the condensate of Vat Brown R by ring closing reaction and oxidation reaction. The method omits one oxidation step, economizes significant amount of oxidizing agent, and reduces significant amount of waste water, so it is very beneficial to environment protection; and the method also exhibited the advantages of highly increasing product yield and reducing the costs of raw materials to an extent of more than 30%.