Alizarine Yellow R

Alizarine Yellow R

Chembox new
Name = Alizarine Yellow R
ImageFile = Alizarin-Yellow-R-2D-skeletal.png ImageName = Alizarine Yellow R
IUPACName =
OtherNames = 5- [(p-nitrophenyl)azo] salicylic acid sodium salt
Chrome Orange
Mordant Orange 1
C.I. 14030
Section1 = Chembox Identifiers
CASNo = 1783-34-9] (Na salt)
[2243-76-7] (acid)
SMILES = O=C( [O-] )c1cc(ccc1O)/N=N/
c2ccc(cc2) [N+] ( [O-] )=O

Section2 = Chembox Properties
Formula = C13H8N3NaO5
MolarMass = 309.21 g mol−1 (Na salt)
287.23 g mol−1 (acid)
Density =
MeltingPt =
BoilingPt =

Section3 = Chembox Hazards
MainHazards = Harmful
FlashPt =
Autoignition =

Alizarine Yellow R is a yellow colored azo dye made by the diazo coupling reaction. It usually comes as a sodium salt. In its pure form it is a rust-colored solid [http://msds.chem.ox.ac.uk/AL/alizarin_yellow_R.html] .

pH indicator

It is a pH indicator.

References


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