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Methyl Orange

Methyl Orange / CAS : 547-58-0

Appearance Orange to yellow powder UN 3143
HS 29270000 DG Class 6.1
Synonyms Acid Orange 52; Betz 0211; S No 176; Orange3; Helianthine; Helianthin; 4-Dimethylaminoazobenzene-4'-Sulfonic Acid,Sodium Salt; Orange III; Tropaeolin D; Benzenesulfonic Acid, 4-[[4-(Dimethylamino)Phenyl]Azo]-, Sodium Salt; Oranziii; Helianthine B; Methyl Orange 0.1%; C.I. Acid Orange 52; UNI-CHEM - Methyl Orange 0.1%
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Properties

Summary

Formula
C14H14N3NaO3S
Molecular Mass
327.33400
Exact Mass
327.06500
PSA
93.54000
Logp
4.15290
IUPAC
sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate
SMILES
CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Acid Dyes

Chemical and Physical Properties

Melting Point
300 °C
Density
0.987 g/mL at 25 °C
Boiling Point
100ºC
Flash Point
37 °C
Appearance
Orange to yellow powder
Acidity and Basicity
acidness

Export information

HS Code
29270000
Export Rebate
13%
UN No.
3143
DG-Class
6.1
Risk Code
R25-10
Safety Label
T

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