ChemicalBook--->CAS DataBase List--->142-08-5

142-08-5

142-08-5 Structure

142-08-5 Structure
IdentificationMore
[Name]

2-Hydroxypyridine
[CAS]

142-08-5
[Synonyms]

1,2-dihydro-2-oxopyridine
1H-2-Pyridone
1h-pyridin-2-one
2(1H)-PYRIDONE
2-HYDROXYPYRIDINE
2-oxopyridine
2-PYRIDINOL
2-pyridinone
2-PYRIDOL
2-PYRIDON
2-PYRIDONE
a-Hydroxypyridine
A-PYRIDONE
AURORA KA-3075
PYRIDIN-2-OL
TIMTEC-BB SBB004392
1-Hydroxy-2-pyridine
2(1h)-pyridinone
alpha-Pyridone
Pyridone-2
[EINECS(EC#)]

205-520-3
[Molecular Formula]

C5H5NO
[MDL Number]

MFCD00006268
[Molecular Weight]

95.1
[MOL File]

142-08-5.mol
Chemical PropertiesBack Directory
[Appearance]

white to light yellow crystal
[Melting point ]

105-107 °C (lit.)
[Boiling point ]

280-281 °C (lit.)
[density ]

1.39
[refractive index ]

1.5939 (estimate)
[Fp ]

210 °C
[storage temp. ]

Store at RT.
[solubility ]

450g/l
[form ]

Liquid
[pka]

0.75(at 20℃)
[color ]

Colorless to yellow to brown, darken on storage with no loss of purity
[Water Solubility ]

Soluble in water 450 g/L @ 20°C and ethanol, slightly soluble in benzene and ether.
[Detection Methods]

HPLC,NMR
[BRN ]

105786
[LogP]

-0.593 (est)
[CAS DataBase Reference]

142-08-5(CAS DataBase Reference)
[NIST Chemistry Reference]

2(1H)-Pyridinone(142-08-5)
[Storage Precautions]

Light sensitive
[EPA Substance Registry System]

142-08-5(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi,Xn
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
S22:Do not breathe dust .
[RIDADR ]

UN2811
[WGK Germany ]

3
[RTECS ]

UV1144050
[F ]

8
[TSCA ]

Yes
[HazardClass ]

6.1
[PackingGroup ]

III
[HS Code ]

29333990
[Toxicity]

LD50 ipr-mus: 410 mg/kg TOXIA6 23,815,85
Raw materials And Preparation ProductsBack Directory
[Raw materials]

1,3-Dicyclohexylthiourea-->Allyl isothiocyanate-->Dicyclohexylcarbodiimide-->Carbonic acid, 1,1-dimethylethyl 2-pyridinyl ester (9CI)-->2(1H)-Pyridinone, 1-[[(4-methoxy-1-naphthalenyl)carbonyl]oxy]- (9CI)-->BOC-L-Tyrosine
[Preparation Products]

2-Hydroxy-5-bromopyridine-->DI-2-PYRIDYL THIONOCARBONATE-->Reactive Brilliant Yellow M-7G-->5-CHLOROPYRIDIN-2(1H)-ONE-->3,5-DICHLORO-2-PYRIDONE-->disodium 4-[[5-(aminocarbonyl)-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridyl]azo]-6-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]benzene-1,3-disulphonate-->2,3-Dihydroxypyridine-->(2-OXOPYRIDIN-1(2H)-YL)ACETIC ACID-->2-HYDRAZINO-3-NITROPYRIDINE
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2-Hydroxypyridine(142-08-5).msds
Hazard InformationBack Directory
[Chemical Properties]

white to light yellow crystal
[Uses]

Catalyst for generating β-oxopropyl carbonates from cyclic carbonates and alcohols1 and in the aminolysis of a polyglutamate.2
[Definition]

ChEBI: A monohydroxypyridine that is pyridine substituted by a hydroxy group at position 2.
[General Description]

2-Hydroxypyridine, an enolic tautomer of 2-pyridone, belongs to the class of volatile organic compounds (VOCs).
[Safety Profile]

Moderately toxic by intraperitoneal and intravenous routes. A combustible liquid. When heated to decomposition it emits toxic vapors of NOx.
[Purification Methods]

Distil the pyridone under vacuum to remove coloured impurity, then recrystallise from *benzene, CCl4, EtOH or CHCl3/diethyl ether. It can be sublimed under high vacuum. [DePue et al. J Am Chem Soc 107 2131 1985, Beilstein 21/7 V 106.]
Spectrum DetailBack Directory
[Spectrum Detail]

2-Hydroxypyridine(142-08-5)MS
2-Hydroxypyridine(142-08-5)1HNMR
2-Hydroxypyridine(142-08-5)13CNMR
2-Hydroxypyridine(142-08-5)IR1
2-Hydroxypyridine(142-08-5)IR2
2-Hydroxypyridine(142-08-5)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2-Hydroxypyridine, 97%(142-08-5)
[Alfa Aesar]

2-Hydroxypyridine, 98+%(142-08-5)
[Sigma Aldrich]

142-08-5(sigmaaldrich)
[TCI AMERICA]

2-Hydroxypyridine,>98.0%(GC)(142-08-5)
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