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CHROMOTROPE 2B

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CHROMOTROPE 2B Basic information

Product Name:
CHROMOTROPE 2B
Synonyms:
  • 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
CAS:
548-80-1
MF:
C16H9N3Na2O10S2
MW:
513.37
EINECS:
208-959-9
Mol File:
548-80-1.mol
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CHROMOTROPE 2B Chemical Properties

Melting point:
300 °C
form 
Crystalline Powder
Colour Index 
16575
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 Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
TSCA 
Yes

MSDS

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CHROMOTROPE 2B Usage And Synthesis

Chemical Properties

dark green to dark purple crystalline powder

Uses

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

CHROMOTROPE 2B Preparation Products And Raw materials

Raw materials

N-Methyl-4-nitroanilineCHROMOTROPIC ACID SODIUM SALT

CHROMOTROPE 2BSupplier

J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Alfa Aesar
Tel
400-610-6006; 021-67582000
Email
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386 / 800-988-0390
Email
Sales-CN@TCIchemicals.com
Energy Chemical
Tel
021-58432009
Email
sales8178@energy-chemical.com
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202- ;021-54308259-
Email
info@hanhonggroup.com;info@hanhonggroup.com
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