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Vat Orange 11

CAS No.
2172-33-0
Chemical Name:
Vat Orange 11
Synonyms
C.I. 70805;Yellow 3RT;VATYELLOW3R;vat orange 11;Vat Yellow 3RT;C.I.VATORANGE11;Vat Orange 11:1;Convat Orange AA;C.I.Vat Yellow 11;Novatic Yellow 3R
CBNumber:
CB8855053
Molecular Formula:
C42H18N2O6
Molecular Weight:
646.6
MDL Number:
MFCD09838807
MOL File:
2172-33-0.mol
MSDS File:
SDS
Last updated:2026-08-28 09:47:35
Product description Number Pack Size Price
VAT ORANGE 11 95.00% DYE0003630 5MG $498.95
More product size

Vat Orange 11 Properties

Density 1.651
pka 11.90±0.20(Predicted)
Water Solubility 1μg/L at 20℃
EPA Substance Registry System Dinaphtho[2,3-i:2',3'-i']benzo[1,2-a:4,5-a']dicarbazole-5,7,12,17,19,24(6H,18H)-hexone (2172-33-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H317-H412-H319
Precautionary statements  P273-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P264-P280-P305+P351+P338-P337+P313P
TSCA  TSCA listed
REACH Registrations Active

Vat Orange 11 price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation DYE0003630 VAT ORANGE 11 95.00% 2172-33-0 5MG $498.95 2021-12-16 Buy
Product number Packaging Price Buy
DYE0003630 5MG $498.95 Buy

Vat Orange 11 Chemical Properties,Uses,Production

Chemical Properties

Reddish brown powder. Insoluble in water, ethanol, acetone, chloroform, toluene, slightly soluble in o-chlorophenol, pyridine. Reddish brown in concentrated sulfuric acid, produces brownish yellow precipitate after dilution. Dark reddish brown in alkaline insurance powder reducing solution, dark yellow in acidic solution.

Uses

Vat Orange 11 is mainly used for cotton fabric dyeing and immersion dyeing, as well as direct printing on cotton fabric. It is also used for dyeing and color matching of silk and vinylon. It has good affinity and leveling properties and is an important low-brittleness fabric yellow dye. It can also be used for paper coloring.

Preparation

1,5-Diaminoanthraquinoneand 1-Bromoanthracene-9,10-dione or 1-Chloroanthraquinone(2 Moore) condensation, product Potassium hydroxide with Aluminium chloride or cyclization, with Potassium permanganate again or Sodium hypochlorite oxidation.

Flammability and Explosibility

Not classified

Synthesis

1,1' : 5 1,''-Trianthrimide-2,2' : 6,2''- carbazole, Indanthren Yellow 3 R, is prepared from 1,1' : 5,1''- trianthrimide in AlCl3-NaCl melts .

Properties and Applications

Yellow orange. Yellow powder. Slightly soluble in 2-Chlorophenol and Pyridine , insoluble in Etanol, Acetone, Chloroform and Toluene. The strong sulfuric acid to red light brown, dilute light yellow brown after precipitation. Alkaline reduction for dark red light body hidden color brown; Acid reduction for yellow color body hidden. The light is fragile. Mainly used for dyeing cotton roll and dip, the affinity of cotton cloth is good and the levelness of death and the covering power of cotton are good. Can to cotton direct printing. with Villeneuve shade of Pale, coloured silk high affinity, good fastness. Besides using background color outside, a small amount used to spell color. Sometimes also used for paper dyeing.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 3 5 7 4-5 5 5 5
AATCC 3-4 5 7 5 5

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VATYELLOW3R C.I.VATORANGE11 Vat orange 11 (C.I. 70805) Yellow 3RT C.I.Vat Yellow 11 Cibanone Yellow 3R Convat Orange AA Kenanthrene Orange RN Navinon Yellow 3RT Novatic Yellow 3R Ostanthren Yellow 3RT Trianthrene Yellow 3RT C.I.Vat Orange 11:1 Indanthrene Yellow 3RT Vat Orange 11:1 6,18-dihydrodinaphtho[2,3-i:2',3'-i']benzo[1,2-a:4,5-a']dicarbazole-5,7,12,17,19,24-hexone vat orange 11 C.I. 70805 Vat Yellow 3RT Dinaphtho2,3-i:2,3-ibenzo1,2-a:4,5-adicarbazole-5,7,12,17,19,24(6H,18H)-hexone Vat Orange 11 ISO 9001:2015 REACH C.I.Vat Orange 11:C.I.70805 2172-33-0 324-11-4 C42H18N2O6 Organics