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MagnesonⅠ - reagent grade, high purity , CAS No.74-39-5
Basic Description Synonyms 4-(4-Nitrophenylazo)resorcinol|74-39-5|Magneson|Magneson I|p-Nitrophenylazoresorcinol|p-Diazoviolet|Magnezon I|p-Nitrobenzeneazoresorcinol|4-(p-Nitrophenylazo)resorcinol|AZO VIOLET|2,4-Dihydroxy-4'-nitroazobenzene|4-((4-Nitrophenyl)diazenyl)benzene-1,3-di Specifications & Purity AR Biochemical and Physiological Mechanisms 4- (4-nitrobenzazo) resorcinol, also known as azo violet or magnesium reagent I, is red powder. Blue lake was formed by reaction with Mg (OH) 2 in alkaline solution. It is mainly used to determine the existence of magnesium in the solution.
4 - (4-nitrobe Shipped In Normal Grade AR Product Description Application
It is a derivitized resorcinol dye compound with an absorption maximum of 432 nm. Used as a pH indicator.
Names and Identifiers Pubchem Sid 488180050 Pubchem Sid Url https://pubchem.ncbi.nlm.nih.gov/substance/488180050 IUPAC Name 4-[(4-nitrophenyl)diazenyl]benzene-1,3-diol INCHI InChI=1S/C12H9N3O4/c16-10-5-6-11(12(17)7-10)14-13-8-1-3-9(4-2-8)15(18)19/h1-7,16-17H InChi Key NGPGYVQZGRJHFJ-UHFFFAOYSA-N Canonical SMILES C1=CC(=CC=C1N=NC2=C(C=C(C=C2)O)O)[N+](=O)[O-] Isomeric SMILES C1=CC(=CC=C1N=NC2=C(C=C(C=C2)O)O)[N+](=O)[O-] WGK Germany 3 RTECS VH2810000 PubChem CID 6320 Molecular Weight 259.22 Beilstein 674709 Reaxy-Rn 1843782
Chemical and Physical Properties Solubility Soluble in dilute sodium hydroxide. Insoluble in water. Sensitivity Moisture sensitive. Melt Point(°C) 199-200°C
Safety and Hazards(GHS) Pictogram(s) GHS07 Signal Warning Hazard Statements H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
Precautionary Statements P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352: IF ON SKIN: wash with plenty of water.
P321: Specific treatment (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
P264: Wash hands [and …] thoroughly after handling.
P271: Use only outdoors or in a well-ventilated area.
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P362+P364: Take off contaminated clothing and wash it before reuse.
P264+P265: Wash hands [and …] thoroughly after handling. Do not touch eyes.
P337+P317: If eye irritation persists: Get medical help.
P332+P317: If skin irritation occurs: Get medical help.
P319: Get medical help if you feel unwell.
WGK Germany 3 RTECS VH2810000 Reaxy-Rn 1843782 Merck Index 5695
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