ChemicalBook CAS DataBase List 1141-59-9

1141-59-9

Name	4-(2-PYRIDYLAZO)RESORCINOL
CAS	1141-59-9
EINECS(EC#)	214-528-6
Molecular Formula	C11H9N3O2
MDL Number	MFCD00006256
Molecular Weight	215.21
MOL File	1141-59-9.mol

Synonyms

4-(2'-PYRIDYLAZO)-RESORCINOL 4-(2-PYRIDYLAZO)RESORCINOL PAR TIMTEC-BB SBB008938 3-Benzenediol,4-(2-pyridinylazo)-1 4-(2-pyridinylazo)-3-benzenediol 4-(2-PYRIDYLAZO)RESORCINOL 98% 4-(2-PYRIDYLAZO)RESORCINOL, FOR THE DETE RMINATION OF HG 4-(2-PYRIDYLAZO)RESORCINOL FREE ACID ParIndicatorGr (2-PyridylAzo)Resorcinol 4-(2-Pyridilazo)resorcinol, 99% 4-(2-pyridylazo)resorcinol, acs PAR,REAGENT,ACS 4-(2-PYRIDYLAZO)RESORCINOL (PAR) SPECTROPHOTOMETRIC REAGENT FOR TRANSITION METALS P.A.R. Free Acid ACS PAR [=4-(2-Pyridylazo)resorcinol] [Spectrophotometric reagent for transition metals] PAR, Reagent 2-(2,4-Dihydroxyphenylazo)pyridine 4-(2-Pyridinylazo)benzene-1,3-diol

Chemical Properties

Appearance	ORANGE POWDER
Melting point	192-202 °C(lit.)
Boiling point	355.48°C (rough estimate)
density	1.2579 (rough estimate)
refractive index	1.4930 (estimate)
storage temp.	room temp
form	Powder
pka	8.18±0.35(Predicted)
color	Orange
Water Solubility	Soluble in water (partly), and ethanol (slightly). Insoluble in ether, and low-polarity solvents.
BRN	184665
CAS DataBase Reference	1141-59-9(CAS DataBase Reference)
EPA Substance Registry System	1,3-Benzenediol, 4-(2-pyridinylazo)- (1141-59-9)

Safety Data

Hazard Codes	Xi
Risk Statements	R36/37/38:Irritating to eyes, respiratory system and skin . less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . less more
RIDADR	2811
WGK Germany	3
TSCA	Yes
HazardClass	6.1
PackingGroup	III
HS Code	29333990

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