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DIBENZANTHRONE

DIBENZANTHRONE structure

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

MSDS File:: SDS

Last updated:2026-05-12 09:16:02

Product description	Number	Pack Size	Price
VAT BLUE 18 (C.I. 59815) Aldrich^CPR	S468398	1 unit	$197
VAT BLUE 18 (C.I. 59815) AldrichCPR	S468398	250MG	$179
VarBlue20	T900	25g	$1346
Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione	FA143390	5G	$593.75
Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione 95+%	100278	1g	$975
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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
Appearance	Brown to black Solid
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)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P305+P351+P338
TSCA	TSCA listed
REACH Registrations	Active

DIBENZANTHRONE price More Price(26)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	S468398	VAT BLUE 18 (C.I. 59815) Aldrich^CPR	116-71-2	1 unit	$197	2026-04-30	Buy
Sigma-Aldrich	S468398	VAT BLUE 18 (C.I. 59815) AldrichCPR	116-71-2	250MG	$179	2024-03-01	Buy
AK Scientific	T900	VarBlue20	116-71-2	25g	$1346	2021-12-16	Buy
Biosynth Carbosynth	FA143390	Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione	116-71-2	5G	$593.75	2021-12-16	Buy
Matrix Scientific	100278	Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione 95+%	116-71-2	1g	$975	2021-12-16	Buy

Product number	Packaging	Price	Buy
S468398	1 unit	$197	Buy
S468398	250MG	$179	Buy
T900	25g	$1346	Buy
FA143390	5G	$593.75	Buy
100278	1g	$975	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 %

DIBENZANTHRONE synthesis

Synthesis of DIBENZANTHRONE from 7H-Benz[de]anthracen-7-one, 2-chloro-

DIBENZANTHRONE Preparation Products And Raw materials

Raw materials

Sodium acetate Triethylene glycol Diffusing agent Nitrogen Naphthalene

Potassium hydroxide Sodium acetate trihydrate Benzanthrone Sodium chlorate [4,4'-bi-7H-benz[de]anthracene]-7,7'-dione

7H-Benz[de]anthracen-7-one, 2-chloro- [3,3'-bi-7H-benz[de]anthracene]-7,7'-dione Anthra[9,1,2-cde]benzo[rst]pentaphene 4,4'-dibenzoyl-1,1'-binaphtyl Vat Violet 10

3-Bromobenzanthrone Anthracen-9-ol 4,4'-dibenzoyl-1,1'-binaphtyl

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Preparation Products

INDANTHRENE BLACK BBN vat black 16 Vat Dark Blue VB Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione, chloro derivs. Vat Black 9

INDANTHRENE BLACK BBN vat black 16

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DIBENZANTHRONE Suppliers

Global( 108)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29817	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
AFINE CHEMICALS LIMITED	+86-0571-85134551	sales@afinechem.com	China	15082	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
CD Chemical Group Limited	+8615986615575	info@codchem.com	China	17259	58
Shaanxi Didu New Materials Co. Ltd	+8617792793228	1069@dideu.com	China	8476	58
Aromsyn Co., Ltd.	+86-0571-85585865 +8613336024896	CB@aromsyn.com	China	19183	58
TargetMol Chemicals Inc.	+1-781-999-5354;	support@targetmol.com	United States	39040	58
PT CHEM GROUP LIMITED	+86-85511178;	peter68@ptchemgroup.com	China	35425	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49967	58

Supplier	Advantage
career henan chemical co	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
AFINE CHEMICALS LIMITED	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
CD Chemical Group Limited	58
Shaanxi Didu New Materials Co. Ltd	58
Aromsyn Co., Ltd.	58
TargetMol Chemicals Inc.	58
PT CHEM GROUP LIMITED	58
GIHI CHEMICALS CO.,LIMITED	58

View Lastest Price from DIBENZANTHRONE manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2019-07-06	DIBENZANTHRONE 116-71-2	US $2.00 / kg	1kg	99%	100kg	Career Henan Chemical Co

DIBENZANTHRONE
116-71-2
US $2.00 / kg
99%
Career Henan Chemical Co

116-71-2(DIBENZANTHRONE)Related Search:

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N-[5,8,13,14-tetrahydro-5,8,14-trioxo-11-(trifluoromethyl)naphth[2,3-c]acridin-6-yl]benzamide 5-bromo-2-(5-bromo-4-chloro-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-4-chloro-1,2-dihydro-3H-indol-3-one 17,18-dihydrodinaphtho[1',2',3':3,4;3'',2'',1'':9,10]perylo[1,12-efg][1,4]dioxocin-5,10-dione VAT BLUE 12 C.I. Vat Blue 15

INDANTHRENE BLACK BBN Anthrone Bianthrone

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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