ChemicalBook > CAS DataBase List > BENZOPURPURIN 4B

BENZOPURPURIN 4B

Product Name
BENZOPURPURIN 4B
CAS No.
992-59-6
Chemical Name
BENZOPURPURIN 4B
Synonyms
Red 4B;CI 23500;azamin4b;SULTAN 4B;eriered4b;eclipsered;paperred4b;purpurin4b;CI NO 23500;cottonred4b
CBNumber
CB4710130
Molecular Formula
C34H29N6NaO6S2
Formula Weight
704.75
MOL File
992-59-6.mol
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BENZOPURPURIN 4B Property

Melting point:
>250°C
storage temp. 
Amber Vial, -20°C Freezer
solubility 
Soluble in water, ethanol, acetone, sodium hydroxide, sulfuric acid
form 
powder
Colour Index 
23500
color 
Brown
PH Range
1.2(violet)-4(red)
Water Solubility 
Soluble in water (20 mg/ml), acetone, ethanol (3 mg/ml), sodium hydroxide, and sulfuric acid.
λmax
500nm
Merck 
14,1101
Stability:
Stable. Incompatible with strong oxidizing agents.
Major Application
Liquid crystal displays, thin films, electronic devices, inks, lithographic printing plates, lithographic printing plates, printing and dyeing applications, textiles, lubricants, food storage, microorganism staining agent, treatment of apolipoprotein E-related diseases, antifungal agent
EPA Substance Registry System
C.I. Direct Red 2, disodium salt (992-59-6)
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Safety

Hazard Codes 
T
Risk Statements 
45-36/37/38
Safety Statements 
53-45-60-37-26
WGK Germany 
3
RTECS 
QK1765000
8
TSCA 
Yes
HS Code 
29215900
Hazardous Substances Data
992-59-6(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
S567620
Product name
BENZOPURPURIN B
Purity
AldrichCPR
Packaging
250MG
Price
$179
Updated
2024/03/01
TCI Chemical
Product number
B0781
Product name
Benzopurpurine 4B
Packaging
5g
Price
$555
Updated
2024/03/01
Alfa Aesar
Product number
J64901
Product name
Benzopurpurin 4B
Packaging
25g
Price
$55.65
Updated
2024/03/01
Alfa Aesar
Product number
J64901
Product name
Benzopurpurin 4B
Packaging
100g
Price
$215.65
Updated
2024/03/01
TRC
Product number
B205810
Product name
Benzopurpurine4B(TechnicalGrade)
Packaging
50g
Price
$250
Updated
2021/12/16
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BENZOPURPURIN 4B Chemical Properties,Usage,Production

Chemical Properties

dark red or brown powder

Uses

Benzopurpurine 4B is a biological stain and pH indicator for pH 2.3-4.4.

Uses

For dyeing primarily cotton and viscose rayon: Colour Index vol. 2 (3rd ed., 1971) p 2101. As an analytical reagent in detection of Al, Mg, Hg, Ag, U; as a biological stain; as pH indicator, violet 1.2 to red 4.0.

Preparation

3,3′-Dimethylbenzidine double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.

General Description

Brown to dark red powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.

Reactivity Profile

BENZOPURPURIN 4B 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 BENZOPURPURIN 4B are not available. BENZOPURPURIN 4B is probably combustible.

Purification Methods

It crystallises from H2O. It is a biological stain that is violet at pH 1.2 and red at pH 4.0 and is used for detecting Al, Mg, Hg, Au and U. [Beilstein 16 H 411, 16 II 224, 16 III 474, 16 IV 601.]

Properties and Applications

red. Red powder. Soluble in water and red to red light for brown, soluble in soluble fiber element, ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid for red light blue, shallow green light blue for diluted, precipitation; In nitric acid solution for blue, yellow to brown. The dye solution to join strong hydrochloric acid for violet black, precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation; Add 10% sodium hydroxide solution in red. Mainly used for cellulose fiber dyeing and printing.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 1-2 4 1 2 2
AATCC 1 4 2 1 2

BENZOPURPURIN 4B Preparation Products And Raw materials

Raw materials

Preparation Products

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BENZOPURPURIN 4B Suppliers

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View Lastest Price from BENZOPURPURIN 4B manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Sultan Red 4B 992-59-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-29
Hebei Mojin Biotechnology Co., Ltd
Product
Sultan Red 4B 992-59-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-09-26
Career Henan Chemical Co
Product
BENZOPURPURIN 4B 992-59-6
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
25kg
Release date
2019-07-11

992-59-6, BENZOPURPURIN 4BRelated Search:


  • BENZOPURPURIN B, FOR MICROSCOPY
  • BENZOPURPURINE 4B, FOR MICROSCOPY,INDICA TOR
  • Diclosulam, Pestanal
  • Direct Benzo Purpine 4B
  • SULTAN 4B
  • PURPURINE 4B
  • VICTORIA RED
  • tertrodirectred4b
  • tetrodirectred4b
  • Benzopurpurine 4B 1-Naphthalenesulfonic acid, 3,3'-[[3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl]bis(azo)]bis(4-amino-, disodium salt
  • Direct red 2 (C.I. 23500)
  • 1-Naphthalenesulfonic acid, 3,3'-[(3,3'-dimethyl[1,1'- biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-, disodium salt
  • disodium 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo)bis(4-aminonaphthalene-1-sulphonate)
  • 3,3'-DIMETHYLBIPHENYL-4,4'-BIS-2-AMINONAPHTHYLAZO-6-SULFONATE, DINA
  • Benzopurpurine 4B, indicator
  • BENZOPURPURIN 4B
  • BENZOPURPURIN B
  • BENZOPURPURINE 4B
  • BRILLIANT PURPURIN
  • BRILLIANT PURPURIN R
  • CALCOMINE RED 4BX
  • CI 23500
  • CI NO 23500
  • DIAMINE RED 4B
  • DIAMINE RED B
  • DELTAPURPURIN
  • DIRECT RED 3
  • DIRECT RED 2
  • DIRECT PURPURINE 4B
  • DIANIL RED 4B
  • DIANIL RED 4C
  • 1-naphthalenesulfonicacid,3,3’-((3,3’-dimethyl(1,1’-biphenyl)-4,4’-diyl)bis(a
  • 1-naphthalenesulfonicacid,3,3’-((3,3’-dimethyl(1,1’-diphenyl)-4,4’-diyl)bis(a
  • 1-naphthalenesulfonicacid,3,3’-[(3,3’-dimethyl[1,1’-biphenyl]-4,4’-diyl)bis(a
  • 1-Naphthalenesulfonicacid,3,3’-[[3,3’-dimethyl(1,1’-biphenyl)-4,4’-diyl]bis(azo)]bis(4-amino-,disodiumsalt
  • amanilpurpurine4b
  • atuldirectred4b
  • azamin4b
  • azocardred4b
  • bencidalpurple4b
  • benzanilpurpurine4b
  • benzopurpurine4bkx
  • benzopurpurine4bx
  • brasilaminared4b
  • c.i.directred2
  • c.i.directred2,disodiumsalt
  • cervenprima2
  • chromeleatherred4b
  • cottonred4b
  • diacottonbenzopurpurine4b
  • diaminepurpurine4b
  • diaphtaminepurpurine
  • diaphtaminepurpurine4b
  • diazaminepurpurine4b
  • diazinered4b
  • diazolpurpurine4b
  • diphenylred4b
  • diphenylred4bs