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4-(4-Nitrophenyl)azoresorcinol

4-(4-Nitrophenyl)azoresorcinol
4-(4-Nitrophenyl)azoresorcinol
CAS No.
74-39-5
Chemical Name:
4-(4-Nitrophenyl)azoresorcinol
Synonyms
MAGNESON;MagnesonⅠ;MAGNESON I;AZO VIOLET;MagnesonIGr;MagnesonIiGr;p-diazviolet;AZOVIOLET BENZENE;TIMTEC-BB SBB008851;4-(4-NITROPHENYLAZO)
CBNumber:
CB0106591
Molecular Formula:
C12H9N3O4
Formula Weight:
259.22
MOL File:
74-39-5.mol

4-(4-Nitrophenyl)azoresorcinol Properties

Melting point:
195-200 °C (dec.)(lit.)
Boiling point:
402.47°C (rough estimate)
Density 
1.3450 (rough estimate)
refractive index 
1.5700 (estimate)
storage temp. 
Store below +30°C.
form 
Powder
color 
Orange-red to red
Water Solubility 
Soluble in dilute sodium hydroxide. Insoluble in water.
Merck 
14,5695
BRN 
674709
Stability:
Stable. Incompatible with strong oxidizing agents, strong bases.
CAS DataBase Reference
74-39-5(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/38
Safety Statements  26-36
WGK Germany  3
RTECS  VH2810000
TSCA  Yes
HS Code  29270000
Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

4-(4-Nitrophenyl)azoresorcinol price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 114669 4-(4-Nitrophenylazo)resorcinol Dye content 90% 74-39-5 25g $49.2 2018-11-20 Buy
Sigma-Aldrich 114669 4-(4-Nitrophenylazo)resorcinol Dye content 90% 74-39-5 100g $160 2018-11-20 Buy
TCI Chemical N0135 Magneson 74-39-5 1g $14 2018-11-22 Buy
TCI Chemical N0135 Magneson 74-39-5 25g $32 2018-11-22 Buy
Alfa Aesar A12232 4-(4-Nitrophenylazo)resorcinol, 90+% 74-39-5 25g $35 2018-11-13 Buy

4-(4-Nitrophenyl)azoresorcinol Chemical Properties,Uses,Production

Chemical Properties

dark red to brown crystalline powder

Definition

ChEBI: An azobenzene in which the phenyl rings are 4-nitro- and 2,4-dihydroxy-substituted respectively.

Uses

For the detection of magnesium with which it yields a bright blue color in alkaline solution. Also used to determine molybdenum with which it forms a red-violet complex: Nikitina, Andrianova, C.A. 75, 136789v (1971).

Purification Methods

Crystallise the dye from EtOH. [Beilstein 16 H 181, 16 IV 1266.]

4-(4-Nitrophenyl)azoresorcinol Preparation Products And Raw materials

Raw materials

Preparation Products


4-(4-Nitrophenyl)azoresorcinol Suppliers

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4-(4-Nitrophenyl)azoresorcinol Spectrum


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