chromotrope 2b

Modify Date: 2025-08-22 21:06:49

chromotrope 2b Structure
chromotrope 2b structure
Common Name chromotrope 2b
CAS Number 548-80-1 Molecular Weight 513.36600
Density N/A Boiling Point N/A
Molecular Formula C16H9N3Na2O10S2 Melting Point 300 °C
MSDS Chinese USA Flash Point N/A
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name disodium,(3E)-5-hydroxy-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
Synonym More Synonyms

 Chemical & Physical Properties

Melting Point 300 °C
Molecular Formula C16H9N3Na2O10S2
Molecular Weight 513.36600
Exact Mass 512.95200
PSA 242.16000
LogP 5.06760

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S36
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2927000090

 Customs

HS Code 2927000090
Summary 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Articles2

More Articles
Spectrophotometric assay of cephalosporins in pharmaceutical products, using chromotrope 2B and chromotrope 2R. Issa YM and Amin AS

Microchim. Acta 124 (3-4) , 203-209, (1996)

On-line preconcentration of aluminium with immobilized Chromotrope 2B for the determination by flame atomic absorption spectrometry and inductively coupled plasma mass spectrometry. Martin-esteban A, et.al.

Anal. Chim. Acta 304 (1) , 121-126, (1995)

 Synonyms

Chromatrope 2B
EINECS 208-959-9
Chromotrope Red 4B
p-Nitrobenzeneazochromotropic acid sodium salt
Chromotrope 2B disodium salt
chromotrope 2B
MFCD00003951
Naphtocard Fast Red 3B
Khromotrop 2B
Acid Red 176
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