114669
4-(4-Nitrophenylazo)resorcinol
Dye content 90 %
Synonym(s):
Azoviolet, Magneson I
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25 G
$69.60
100 G
$227.00
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25 G
$69.60
100 G
$227.00
About This Item
Linear Formula:
O2NC6H4N=NC6H3-1,3-(OH)2
CAS Number:
Molecular Weight:
259.22
Beilstein/REAXYS Number:
674709
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47
Recommended Products
form
powder
Quality Level
composition
Dye content, 90%
mp
195-200 °C (dec.) (lit.)
λmax
432 nm
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
SMILES string
Oc1ccc(\N=N\c2ccc(cc2)[N+]([O-])=O)c(O)c1
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/b14-13+
InChI key
NGPGYVQZGRJHFJ-BUHFOSPRSA-N
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Biochem/physiol Actions
4-(4-Nitrophenylazo) resorcinol, also known as azo violet or magneson I, is a red colored powder.[1] It functions as a spot test reagent and forms blue lake on reaction with Mg(OH)2 in alkaline solution. It is mainly used for determining the presence of magnesium in the solution.[2][3]
4-(4-Nitrophenylazo)resorcinol is a pH indicator.[4]
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Gloves
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