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74-39-5 - 4-(4-Nitrophenylazo)resorcinol, 90+% - 2,4-Dihydroxy-4'-nitroazobenzene - Magneson - A12232 - Alfa Aesar

A12232 4-(4-Nitrophenylazo)resorcinol, 90+%

CAS Number
74-39-5
Synonyms
2,4-Dihydroxy-4'-nitroazobenzene
Magneson

Size Price ($) Quantity Availability
25g 34.30
100g 91.05
500g 308.70
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4-(4-Nitrophenylazo)resorcinol, 90+%

MDL
MFCD00007310
EINECS
200-808-5

Chemical Properties

Formula
C12H9N3O4
Formula Weight
259.22
Melting point
ca 185° dec.
Solubility
Soluble in dilute sodium hydroxide. Insoluble in water.

Applications

It is a derivitized resorcinol dye compound with an absorption maximum of 432 nm. Used as a pH indicator.

Notes

Store in cool, dry place in a tightly sealed container. Store away from oxidizing agent.

Literature References

Rosa Carballo; Alfonso Castiñeiras; Berta Covelo; Juan Niclós; Ezequiel M. Vázquez-López. Synthesis and characterization of a potassium complex of magneson: [K(HL)(OH2)2]? [H2L=4-(4-nitrophenylazo)resorcinol (magneson)]. Polyhedron, 2001, 20 (18), 2415-2420.

Chuan Yang; Yuan Li; Cheng Huang. Determination of cationic surfactants in water samples by their enhanced resonance light scattering with azoviolet. Analytical and Bioanalytical Chemistry, 2002, 374, (5), 868-872.

Reagent for Mg.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,5695
Beilstein
674709
Harmonized Tariff Code
2927.00
TSCA
Yes
RTECS
VH2810000

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