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3-Hydroxypyridine

HCID 7971
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
109-00-2
Standard SMILES
Oc1cccnc1
InChIKey
GRFNBEZIAWKNCO-UHFFFAOYSA-N
Molecular formula
C5H5NO
Average molar mass
95.1 g/mol
Monoisotopic mass
95.03711378

Overview

3-pyridinol is a monohydroxypyridine that is pyridine in which the hydrogen at position 3 has been replaced by a hydroxy group. It has been detected as a thermal degradation product from the smoke of the burning leaves of Salvia divinorum, a Mexican psychoactive plant.

Names & identifiers

Preferred name
3-Hydroxypyridine
IUPAC
pyridin-3-ol
English name
3-Hydroxypyridine
Molecular formula
C5H5NO
Molecular weight
95.1

Names & synonyms

3-HYDROXYPYRIDINEpyridin-3-ol109-00-23-Pyridinol3-Pyridolbeta-Hydroxypyridinem-Hydroxypyridine4KBE4P5B6SNSC-18470DTXSID1051563CHEBI:87440RefChem:94397
Show more names
3-HP2(1H)-PYRIDONEpyridin-3(4H)-oneNSC 184702-PYRIDONB-PYRIDONE
DTXCID5030115203-637-43-Pyridone3-Oxopyridine3-Pyridyl alcohol3-hydroxy-pyridineMFCD00006378.beta.-Hydroxypyridine

Database identifiers

CAS
109-00-2
PubChem CID
7971
DTXSID
DTXSID1051563
ChEMBL
CHEMBL237847
ChEBI
CHEBI:87440
UNII
4KBE4P5B6S
EC Number
203-637-4
Nikkaji
J1.202.743E、J94.858F

Properties

Computed structural properties

XLogP
0.5
Topological polar surface area
33.1 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
7
Formal charge
0
Complexity
56

Experimental & physicochemical properties

Chemical Classes · 2 items

Nitrogen Compounds -> Pyridines

Industrial compound

SpringerMaterials PropertiesChemical shift
LogP0.48
Vapor Pressure0.55 [mmHg]
Physical DescriptionLight tan powder; [Alfa Aesar MSDS]
Ionization Efficiency · 6 items

Positive

2.76

2.7

Agilent XCT

Electrospray ionization

formic acid (5.3nM)

Collision Cross Section117.3 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: ESI+; Dataset: TOXCAST; Source Identifier: DTXSID1051563]

Physicochemical properties

Melting point
125 · 125-128 °C (lit.)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 5.2% (3 of 58) of reports.

Warning

H315 (94.8%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 58 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 3 items

Chemical: 3-Pyridinol

Status: Active Update: 16-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/19717

3-Pyridinol: Does not have an individual approval but may be used under an appropriate group standard

Hazards SummaryCauses anticonvulsant effects in acute intraperitoneal studies of mice; Causes altered sleep time and changes in motor activity in lethal-dose studies; [RTECS] A skin and strong eye irritant; [Alfa Aesar MSDS] See 2-Hydroxypyridine.
Hazard Classes and CategoriesSkin Irrit. 2 (94.8%)

Toxicology

Adverse EffectsNeurotoxin - Other CNS neurotoxin

Safety data

F
8
PPE
dust mask type N95 (US), Eyeshields, Gloves

Chemistry & industry

Pharmacology

MeSH Pharmacological ClassificationNaturally occurring or synthetic substances that inhibit or retard oxidation reactions. They counteract the damaging effects of oxidation in animal tissues.

Uses & manufacturing

General Manufacturing Information3-Pyridinol: ACTIVE

Applications

Uses3-Hydroxypyridine (cas# 109-00-2) is a compound useful in organic synthesis.

Preparation methods · 1 item

Preparation3-hydroxypyridine was prepared by reacting furfurylamine with H2O2 in the presence of HCl, followed by hydrolysis. The optimal conditions were found as fellows: molar ratio of furfurylamine: HCl : H2O2 = 1 : 5 : 1.1, and H2O2 added dropwisely at 0-5 °C, and then refluxed at 100-105 °C for 0.5 h.

Upstream & downstream products

Upstream raw materials

Fuming sulfuric acid3-Pyridinesulfonic acidMERCURY(II) SULFATE

Downstream products

3-Pyridyl dimethylcarbamate3-Methoxy-pyridine-2-carbaldehyde

Related reactions

506 records
New reaction record
HRID 6372 reaction equation
HRID 6372As reactantuspto-grants-1993_09
HRID 6373 reaction equation
HRID 6373As reactantuspto-grants-1993_09
HRID 13233 reaction equation
HRID 13233As reactantuspto-grants-2010_06
HRID 13245 reaction equation
HRID 13245As reactantuspto-grants-2010_06
HRID 13248 reaction equation
HRID 13248As reactantuspto-grants-2010_06
HRID 16309 reaction equation
HRID 16309As reactantuspto-grants-2010_06
HRID 22716 reaction equation
HRID 22716As reactantuspto-grants-2005_02
HRID 27039 reaction equation
HRID 27039As reactantuspto-grants-1980_09
Page 1 of 64

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Boiling point
280 · 280-281 °C(lit.)
Density
1.1418 · 1.1418 (rough estimate)
refractive index
1.5939 · 1.5939 (estimate)
Flash point
173 °C · 173°C
storage temp.
Keep in dark place,Sealed in dry,Room Temperature
solubility
33 g/l · 33g/l
form
Crystalline Powder
pka
4.79 · 4.79, 8.75(at 20℃)
color
Beige to brown
PH
6 · 6.0-6.5 (33g/l, H2O, 20℃)
Water Solubility
32.26 g/L · 32.26g/L(20 ºC)
BRN
105699 · 105699
InChI
1S/C5H5NO/c7-5-2-1-3-6-4-5/h1-4,7H
InChIKey
GRFNBEZIAWKNCO-UHFFFAOYSA-N
SMILES
Oc1cccnc1
LogP
0.48 · 0.480
CAS DataBase Reference
109 · 109-00-2(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
4 KBE4P5B6S · 4KBE4P5B6S
NIST Chemistry Reference
3 · 3-Pyridinol(109-00-2)
EPA Substance Registry System
3 · 3-Pyridinol (109-00-2)
UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
315 · H315-H319-H335
Precautionary statements
261 · P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs
Respiratory system
PPE
95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes
Xi,Xn
Risk Statements
36 · 36/37/38-40
Safety Statements
26 · 26-36-37/39-22
WGK Germany
3 · 3
RTECS
1144050 · UV1144050
F
8 · 8
Hazard Note
Irritant
TSCA
TSCA listed
HS Code
29333999 · 29333999
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
2 Skin · Eye Irrit. 2Skin Irrit. 2STOT SE 3
REACH Registrations
Active
wgk
3
tsca
TSCA listed
rtecs
UV1144050
hs_code
29333999
risk_code
36/37/38-40
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi,Xn
hazard_note
Irritant
safety_code
26-36-37/39-22
Storage Class
11 - Combustible Solids
target organs
Respiratory system
Hazard statements
H315-H319-H335
REACH Registrations
Active
Hazard Classifications
Eye Irrit. 2Skin Irrit. 2STOT SE 3
Precautionary statements
P261-P264-P271-P280-P302+P352-P305+P351+P338
5-methoxypyridin-3-amine
3-Hydroxypicolinic acid
2,3-Dihydroxypyridine
Mestinon
3-Pyridinol N-oxide
2,6-Dibromo-3-hydroxypyridine
3-Hydroxy-2-pyridinemethanol hydrochloride
2-Chloro-3-methoxypyridine
1-Benzyl-3-piperidone
Additional notes · 1 item

DefinitionChEBI: 3-Hydroxypyridine is a monohydroxypyridine that is pyridine in which the hydrogen at position 3 has been replaced by a hydroxy group. It has been detected as a thermal degradation product from the smoke of the burning leaves of Salvia divinorum, a Mexican psychoactive plant.