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DIBENZANTHRONE

CAS No.
116-71-2
Chemical Name:
DIBENZANTHRONE
Synonyms
Blue BO;c.i.59800;C.I. 59815;C.I. 59800;VAT BLUE 20;Vat Blue 18;bianthronea;vat blue BO;VIOLANTHRONE;vatdarkblueo
CBNumber:
CB1693094
Molecular Formula:
C34H16O2
Molecular Weight:
456.49
MDL Number:
MFCD00046330
MOL File:
116-71-2.mol
Last updated:2024-03-19 15:37:51

DIBENZANTHRONE Properties

Melting point 338-339 °C
Boiling point 522.64°C (rough estimate)
Density 1.1055 (rough estimate)
refractive index 1.4875 (estimate)
storage temp. Sealed in dry,Room Temperature
CAS DataBase Reference 116-71-2(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII VH1DQP6QPQ
NIST Chemistry Reference Dibenzanthrone(116-71-2)
EPA Substance Registry System Violanthrone (116-71-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

DIBENZANTHRONE price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich S468398 VAT BLUE 18 (C.I. 59815) AldrichCPR 116-71-2 250MG $179 2024-03-01 Buy
American Custom Chemicals Corporation FRL0000562 DIBENZANTHRONE 95.00% 116-71-2 1G $289.8 2021-12-16 Buy
Biosynth Carbosynth FA143390 Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione 116-71-2 2g $297 2021-12-16 Buy
Matrix Scientific 100278 Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione 95+% 116-71-2 250mg $435 2021-12-16 Buy
Biosynth Carbosynth FA143390 Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione 116-71-2 500mg $100 2021-12-16 Buy
Product number Packaging Price Buy
S468398 250MG $179 Buy
FRL0000562 1G $289.8 Buy
FA143390 2g $297 Buy
100278 250mg $435 Buy
FA143390 500mg $100 Buy

DIBENZANTHRONE Chemical Properties,Uses,Production

Description

Violanthrone, Indanthren Dark Blue BOA,is generated by potash fusion of benzanthrone , . Direct potash fusion leads to side products, such as isoviolanthrone and 4-hydroxybenzanthrone. The crude product may be used directly or in mixtures with other dyes in vat dyeing. It is also used to generate violanthrone derivatives. Several processes have been developed to decrease the amounts of undesirable side products of the direct potash fusion of benzanthrone or to purify the bibenzanthronyl or the crude violanthrone . Especially effective is the addition of high-boiling solvents such as naphthalene, the so-called low carbazole anthracene residues, or sodium acetate to the melt. The quality of the products prepared by these methods is satisfactory for the production of almost all violanthrone dyes.

General Description

Bluish-black to black powder.

Air & Water Reactions

Insoluble in water.

Fire Hazard

Flash point data for DIBENZANTHRONE are not available. DIBENZANTHRONE is probably combustible.

Flammability and Explosibility

Not classified

Synthesis

Violanthrone of high purity is obtained from 4,4'-bibenzanthronyl (153) by alkaline or acid ring closure, preferably in the presence of oxidizing agents , . If this ring closure is carried out in sulfuric acid with an excess of manganese dioxide, the 16,17- violanthronequinone (155) is obtained. This can be reduced readily with sodium hydrogen sulfite to 16,17-dihydroxyviolanthrone (156). Subsequent alkylation of the hydroxy groups yields very fast navy-blue to brilliant-green vat dyes. The dimethyl ether (157) is the well-known dye Caledon Jade Green or Indanthren Brilliant Green B and FFB (extremely pure form).
Synthesis_116-71-2

Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

BLUE POWDER

SHADE

REDDISH

HEAT RESISTANCE

300 °C min

LIGHT FASTNESS

8

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-50%

SPECIFIC SURFACE

27 m 2 /g

DENSITY

1.60 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 %

82-04-2
116-71-2
Synthesis of DIBENZANTHRONE from 7H-Benz[de]anthracen-7-one, 2-chloro-
Global( 94)Suppliers
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career henan chemical co
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SHANDONG ZHI SHANG CHEMICAL CO.LTD
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Hefei TNJ Chemical Industry Co.,Ltd.
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Dideu Industries Group Limited
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AFINE CHEMICALS LIMITED
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Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739 info@dycnchem.com CHINA 52867 58
CD Chemical Group Limited
+8615986615575 info@codchem.com China 20356 58
Alfa Chemistry
+1-5166625404 Info@alfa-chemistry.com United States 21317 58

View Lastest Price from DIBENZANTHRONE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
DIBENZANTHRONE pictures 2019-07-06 DIBENZANTHRONE
116-71-2
US $2.00 / kg 1kg 99% 100kg Career Henan Chemical Co
sandothrenedarkbluenbo sandothrenedarkbluenboa sandothrenedarkbluenmba Solanthrene Dark Blue B Solanthrene Dark Blue BA Solanthrene Dark Blue F-BA Vat Dark Blue BO UL Conc VAT BLUE 20 VIOLANTHRONE Anthramar Dark Blue BO Cibanone Blue BOA-01 Dycosthren Dark Blue Hebeithrene Dark Blue BO Intravat Dark Blue BO Patcovat Dark Blue BOA Sandothrene Liquid Dark Blue NBO Trianthrene Dark Blue BOA Youhaothrene Dark Blue BO. 5,10-Violanthrenedione Ahcovat Dark Blue BO ahcovatdarkbluebo Amanthrene Dark Blue BO Amanthrene Supra Dark Blue BO amanthrenedarkbluebo fenanthrendarkbluebo Hydroform Deep Blue BOA hydroformdeepblueboa Indanthren Dark Blue BOA IndanthrenDarkBlueBO indanthrendarkblueboa Indanthrene Dark Blue BO indanthrenedarkbluebo Irgalite Blue 2R irgaliteblue2r Leucosol Dark Blue BR leucosoldarkbluebr sandothrenedarkblueboa sandothrenedarkbluenbm Vat blue 20 (C.I. 59800) Blue BO C.I. 59815 Vat Blue 18 DIBENZANTHRONE solanthrenedarkblueb solanthrenedarkblueba solanthrenedarkblueboa solanthrenedarkbluef-ba Tinon Dark Blue BO Tinon Dark Blue BOA Tinon Dark Blue BOR Tinon Dark Blue MB Tinon Dark Blue MBA tinondarkbluebo tinondarkblueboa tinondarkbluebor tinondarkbluemb tinondarkbluemba Tyrian Dark Blue I-BOA