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CHLORAZOL BLACK BH

CHLORAZOL BLACK BH structure

CAS No.: 2429-73-4

Chemical Name:: CHLORAZOL BLACK BH

Synonyms: NSC75779;C.I.22620;NSC 75779;NSC-75779;C.I. 22590;CCRIS 6236;diazo black;DirectBlueBH;DIRECT BLUE 2;diamine black

CBNumber:: CB1136335

Molecular Formula:: C32H25N6NaO11S3

Molecular Weight:: 788.75

MDL Number:: MFCD00059132

MOL File:: 2429-73-4.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-24 14:57:00

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CHLORAZOL BLACK BH Properties

storage temp.	Amber Vial, Refrigerator
solubility	DMSO (Slightly), Methanol (Slightly)
Colour Index	22590
form	Solid
color	Dark Blue to Black
CAS DataBase Reference	2429-73-4(CAS DataBase Reference)
FDA UNII	EE5HVP9RA8
EPA Substance Registry System	C.I. Direct Blue 2, trisodium salt (2429-73-4)

SAFETY

Risk and Safety Statements

Signal word	Warning
Hazard statements	H320
Precautionary statements	P264-P305+P351+P338+P337+P313
RTECS	QJ6158000
TSCA	TSCA listed
HS Code	3204.14.5000
Hazardous Substances Data	2429-73-4(Hazardous Substances Data)

CHLORAZOL BLACK BH price More Price(13)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	R316407	CALCOMINE DIAZO BLACK BHD Aldrich^CPR		1 unit	$32.7	2026-04-30	Buy
Sigma-Aldrich	R316407	CALCOMINE DIAZO BLACK BHD AldrichCPR	2429-73-4	1G	$29.8	2024-03-01	Buy
TCI Chemical	C0529	Direct Blue 2	2429-73-4	25g	$55	2026-04-30	Buy
TRC	TRC-D494985-500MG	Direct Blue 2 (Technical Grade)	2429-73-4	500mg	$77	2026-06-03	Buy
TRC	TRC-D494985-250MG	Direct Blue 2 (Technical Grade)	2429-73-4	250mg	$65	2026-06-03	Buy

Product number	Packaging	Price	Buy
R316407	1 unit	$32.7	Buy
R316407	1G	$29.8	Buy
C0529	25g	$55	Buy
TRC-D494985-500MG	500mg	$77	Buy
TRC-D494985-250MG	250mg	$65	Buy

CHLORAZOL BLACK BH Chemical Properties,Uses,Production

Uses

Direct Blue 2 is an organic azo dye and ground water pollutant, removed via enzymic decolorization by laccase.

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions respectively with the 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

General Description

Dark blue-black powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Water soluble.

Reactivity Profile

CHLORAZOL BLACK BH is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

Fire Hazard

Flash point data for CHLORAZOL BLACK BH are not available, but CHLORAZOL BLACK BH is probably combustible.

Properties and Applications

dark blue. Blue gray powder. Soluble in water for deep purple to black, solubility 35 g/L (85 ℃), slightly soluble in ethanol and soluble fiber element. The strong sulfuric acid in blue, diluted red for purple; In nitric acid for brown in the light purple. The dye solution to join strong hydrochloric acid for red light purple; Add thick sodium hydroxide solution for purplish red color. For cellulose fiber dyeing, the dye absorption rate as well, in 60 ~ 80 ℃ temperature when the biggest affinity. Discharge good, after staining with chromogenic diazotization colorimetric method: use Naphthalen-2-ol show color get navy, between 2 amine with benzene show color get black. Mainly used for cotton, viscose, silk, leather and pulp color.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fading	Stain	Fading	Stain
ISO	4	4	2	2		2
AATCC	3	3	3	3		3

CHLORAZOL BLACK BH Preparation Products And Raw materials

Raw materials

6-Amino-4-hydroxy-2-naphthalenesulfonic acid Benzidine 8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate

Preparation Products

CHLORAZOL BLACK BH Suppliers

Global( 65)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Maya High Purity Chemicals	+86 (573) 82222445 (0)18006601000 452520369	sales@maya-r.com	China	11693	57
TOKYO CHEMICAL INDUSTRY CO., LTD.	03-36680489	Sales-JP@TCIchemicals.com	Japan	28364	80
TCI Europe	320-37350700	sales@tcieurope.eu	Europe	23654	75
TCI AMERICA	800-4238616	sales@tciamerica.com	Americas	23636	75
9ding chemical ( Shanghai) Limited	4009209199	sales@9dingchem.com	China	22497	55
Wuxi Zhongkun Biochemical Technology Co., Ltd.	0510-85629785 18013409632;	sales@reading-chemicals.com	China	15165	58

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
TCI (Shanghai) Development Co., Ltd.	81
Energy Chemical	61
Maya High Purity Chemicals	57
TOKYO CHEMICAL INDUSTRY CO., LTD.	80
TCI Europe	75
TCI AMERICA	75
9ding chemical ( Shanghai) Limited	55
Wuxi Zhongkun Biochemical Technology Co., Ltd.	58

View Lastest Price from CHLORAZOL BLACK BH manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2021-08-12	CHLORAZOL BLACK BH 2429-73-4	$10.00-15.00	1KG	99%+ HPLC		Zhuozhou Wenxi import and Export Co., Ltd

CHLORAZOL BLACK BH
2429-73-4
$10.00-15.00
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

2429-73-4(CHLORAZOL BLACK BH)Related Search:

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CALCOMINE DIAZO BLACK BHD DIAZOPHENYL BLACK BH DIAZO BLACK BH DIAZO BLACK BHN DIRECT BLUE 2 CHLORAZOL BLACK BH PONTAMINE DEEP BLUE BH 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-2,7-Naphthalenedisulfonic acid, trisodium salt airedale black bhd azomine black bh benzanil black bh C.I. 22590 C.I. direct blue 2 C.I. direct blue 2, trisodium salt calcomine diazo black chlorazol leather black bh Chloroazol Black BH chrome leather black chrome leather dark blue diamine black diazo black diazo fast black diphenyl blue black direct diazo black melantherine bh tertrodirect black union fast navy blue ds vondacel dark blue bh zambesi dark blue bh trisodium 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate Direct Diazo Black BT Cons DirectBlueBH 2,7-Naphthalenedisulfonic acid, 5-amino-3-4-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo1,1-biphenyl-4-ylazo-4-hydroxy-, trisodium salt 5-Amino-3-[[4'-[(7-ethylamino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt C.I.22620 C.I.Direct Black 15 5-Amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt Diazo Black BHN Chlorazol Black BH Direct blue 2 (C.I. 22590) Direct Blue 2 (Technical Grade) C.I.Direct Blue 2:C.I.22590 TriNa 5-amino-3-4'-(7-amino-1-OH-3-sulphonato-2-naphthyl)azo1,1'-biphenyl-4-ylazo-4-OHnaphthalene-2,7-disulphonate CCRIS 6236 NSC 75779 NSC75779 NSC-75779 Pontamine Diazo Black BHSW 2429-73-4 C32H21N6Na3O11S3 C32H21N6O11S33Na Organics