ChemicalBook > CAS DataBase List > CHROMOTROPE 2B

CHROMOTROPE 2B

Product Name
CHROMOTROPE 2B
CAS No.
548-80-1
Chemical Name
CHROMOTROPE 2B
Synonyms
CI 16575;CI NO 16575;CHROMOTROPE;Coloring 2B;ACID RED 176;B,ChroMotrope;CHROMOTROPE 2B;CHROMOTROP 2 B;C.I.Acid Red 176;Mordant Black 93
CBNumber
CB7738401
Molecular Formula
C16H12N3NaO10S2
Formula Weight
493.39
MOL File
548-80-1.mol
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CHROMOTROPE 2B Property

Melting point:
300 °C
Colour Index 
16575
form 
Crystalline Powder
color 
Dark green to dark purple
Merck 
14,2240
BRN 
4109733
CAS DataBase Reference
548-80-1(CAS DataBase Reference)
EPA Substance Registry System
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(4-nitrophenyl)azo]-, disodium salt (548-80-1)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
TSCA 
Yes
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
27130
Product name
Chromotrope 2B
Purity
for microscopy
Packaging
10g
Price
$32.2
Updated
2024/03/01
Alfa Aesar
Product number
L11330
Product name
Chromotrope 2B
Packaging
25g
Price
$43.65
Updated
2024/03/01
Alfa Aesar
Product number
L11330
Product name
Chromotrope 2B
Packaging
100g
Price
$133
Updated
2024/03/01
TRC
Product number
C433120
Product name
Chromotrope 2B
Packaging
2.5g
Price
$75
Updated
2021/12/16
Usbiological
Product number
236886
Product name
Chromotrope 2B
Packaging
25g
Price
$177
Updated
2021/12/16
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CHROMOTROPE 2B Chemical Properties,Usage,Production

Chemical Properties

dark green to dark purple crystalline powder

Uses

Chromotrope 2B is a chromotropic acid azo dye and a groundwater pollutant removed from the environment via photoelectrochemical mineralization.

Uses

As a dye; as a reagent for boric acid or borates.

Preparation

4-Nitrobenzenamine diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling.

Properties and Applications

blue-ray red. Soluble in water for yellow light red, not soluble in alcohol. The strong sulfuric acid for dark purple, diluted into yellow light red solution. In water solution to join hydrochloric acid solution to become yellow, add sodium hydroxide for blue-ray red.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 6-7 4 4 4-5

CHROMOTROPE 2B Preparation Products And Raw materials

Raw materials

N-Methyl-4-nitroaniline CHROMOTROPIC ACID SODIUM SALT

Preparation Products

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CHROMOTROPE 2B Suppliers

Americas 1 Austria 1 Canada 1 China 78 Europe 1 France 1 Germany 3 India 9 Japan 1 Switzerland 1 United Kingdom 6 United States 23 Global 126
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View Lastest Price from CHROMOTROPE 2B manufacturers

Career Henan Chemical Co
Product
CHROMOTROPE 2B 548-80-1
Price
US $1.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1kg，5kg，100kg
Release date
2019-07-10

548-80-1, CHROMOTROPE 2BRelated Search:

CHROMOTROPE 2B 6-Amino-4-hydroxy-2-naphthalenesulfonic acid 6-Amino-2-naphthalenesulfonic acid 1,8-Dihydroxynaphthylene-3,6-disulfonic acid CHROMOTROPE 2R,Chromotrope2R,94%,Chromotrope 2R, pure,Chromotrope N-2R 3-Hydroxythiophenol 2,7-Naphthalenedisulfonic acid disodium salt 1-Naphthol 3-AMINO-5-HYDROXY-2,7-NAPHTHALENEDISULFONIC ACID MONOSODIUM SALT 2-Naphthylamine 8-Hydroxy-2-naphthylamine-3,6-disulfonic acid 4-NITROAZOBENZENE TECH. 90 Disodium 3-aminonaphthalene-2,7-disulphonate 1-Naphthol-3,6-disulfonic acid disodium salt Naphthalene-2,7-disulfonic acid Naphthalene-2-sulfonic acid 1-Naphthol-3,6-disulfonic acid CHROMOTROPIC ACID SODIUM SALT

  • 2,7-Naphthalenedisulfonicacid,4,5-dihydroxy-3-[(4-nitrophenyl)azo-]-,disodiumsalt
  • 7-naphthalenedisulfonicacid,4,5-dihydroxy-3-[(4-nitrophenyl)azo]-disodium
  • AcidRed176(16575)
  • Chromotropicacid2B
  • C.I.Acid Red 176
  • C.I.Mordant Black 93
  • Chromotrope Red 4B
  • Sodium 2-(p-nitrophenylazo)chromotropate
  • 4,5-Dihydroxy-3-(p-nitrophenylazo)-2,7-naphthalenedisulfonic Acid Disodium Salt Acid Red 176
  • B,ChroMotrope
  • disodium 5-hydroxy-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
  • disodium,(3E)-5-hydroxy-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
  • ACID RED 176
  • 4-(P-NITROPHENYLAZO)CHROMOTROPIC ACID SODIUM SALT
  • 4,5-DIHYDROXY-3-(P-NITROPHENYLAZO)-2,7-NAPHTHALENEDISULFONIC
  • 4,5-DIHYDROXY-3-(P-NITROPHENYLAZO)-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
  • DISODIUM 4 5-DIHYDROXY-3-(P-NITROPHENYLAZO)-2 7-NAPHTHALENEDISULFONATE
  • CI NO 16575
  • CHROMOTROPE 2B
  • CHROMOTROPE
  • CHROMOTROP 2 B
  • CI 16575
  • P-NITROBENZENEAZOCHROMOTROPIC ACID SODIUM SALT
  • 2-(4-NITROPHENYLAZO)CHROMOTROPIC ACID DISODIUM SALT
  • Acid Red 176~C.I. 16575
  • disodium 4,5-dihydroxy-3-(p-nitrophenylazo)naphthalene-2,7-disulphonate
  • CHROMOTROPE 2B (C.I. No 16575 )
  • Chromotrope2B,97%
  • Chromotrope 2B, pure
  • 2-(4-Nitrophenylazo)chromotropic acid disodium salt, Acid Red 176
  • C.I.Acid Red 176:C.I.16575
  • C.I.Mordant Black 93:C.I.16575
  • Mordant Black 93
  • Coloring 2B
  • 548-80-1
  • 540-80-1
  • C16H9N3NaO10S2
  • C16H9N3Na2O10S2
  • C16H9N3O10S22Na
  • Analytical Chromatography Product Catalog
  • Analytical Reagents
  • Stains and Dyes
  • Microscopy Reagents