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DIBENZANTHRONE

Product Name
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
Formula Weight
456.49
MOL File
116-71-2.mol
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DIBENZANTHRONE Property

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)
NIST Chemistry Reference
Dibenzanthrone(116-71-2)
EPA Substance Registry System
Violanthrone (116-71-2)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

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

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 %

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DIBENZANTHRONE Suppliers

Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42982
Advantage
64
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11714
Advantage
57
Shanghai JONLN Reagent Co., Ltd.
Tel
400-0066400 13621662912
Fax
021-55660885
Email
422131432@qq.com
Country
China
ProdList
9986
Advantage
55
Hangzhou J&H Chemical Co., Ltd.
Tel
+86-571-87396432 0571-87396433
Fax
0571-87396431
Email
sales@jhechem.com
Country
China
ProdList
10015
Advantage
53
Shanghai HuanChuan Industry Co.,Ltd.
Tel
021-61478794
Fax
021-61478794
Email
sales@hcshhai.com
Country
China
ProdList
9798
Advantage
50
Alfa Chemistry
Tel
1-516-6625404
Fax
1-516-927-0118
Email
support@alfa-chemistry.com
Country
United States
ProdList
9171
Advantage
60
Zhengzhou Huiju Chemical Co., Ltd.
Tel
0371-55900031 18137872243
Fax
QQ:2853979815
Email
2853979815@qq.com
Country
China
ProdList
10010
Advantage
55
Shanghai Orgchem Co.,Ltd.
Tel
+86-21-5877 1921
Fax
+86-21-5877 1925
Email
info@chemofchina.com
Country
China
ProdList
9661
Advantage
55
Hangzhou Molcore Biopharmatech Co.,Ltd
Tel
400-711-5280 86-571-81025280
Fax
86-571-85806285
Email
sales@molcore.com
Country
China
ProdList
9974
Advantage
58
Hubei XinMingTai Chemical Co., Ltd.
Tel
177-7179-1433 17771741533
Fax
027-62437337
Email
1228159977@qq.com
Country
China
ProdList
1299
Advantage
58
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View Lastest Price from DIBENZANTHRONE manufacturers

Career Henan Chemical Co
Product
DIBENZANTHRONE 116-71-2
Price
US $2.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
100kg
Release date
2018-12-23

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