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2-Hydroxy-5-methylpyridine

HCID 70482
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
1003-68-5
Standard SMILES
Cc1ccc(=O)[nH]c1
InChIKey
SOHMZGMHXUQHGE-UHFFFAOYSA-N
Molecular formula
C6H7NO
Average molar mass
109.13 g/mol
Monoisotopic mass
109.05276384

Overview

5-Methyl-2-pyridinol is a member of methylpyridines.

Names & identifiers

Preferred name
2-Hydroxy-5-methylpyridine
IUPAC
5-methyl-1H-pyridin-2-one
English name
2-Hydroxy-5-methylpyridine
Molecular formula
C6H7NO
Molecular weight
109.13

Names & synonyms

2-Hydroxy-5-methylpyridine1003-68-55-Methyl-2-pyridone5-Methyl-2(1H)-pyridinoneC173P2D70YDTXSID20143120RefChem:537051DTXCID3065611213-713-95-methylpyridin-2-ol91914-06-65-Methylpyridin-2(1H)-one
Show more names
AKOS BBS-00002970Hydroxy-5-Methylpyrid5-Methyl-2-oxopyridine2-Hydroxy-5-methyL6-HYDROXY-3-PICOLINE
5-methyl-1H-pyridin-2-one2-Hydroxy-5-picoline5-Methyl-2-pyridinol2-Pyridinol, 5-methyl-2(1H)-Pyridinone, 5-methyl-Pirfenidone EP Impurity B5-methyl-pyridin-2-ol5-methyl-2(1H)-pyridone

Database identifiers

CAS
1003-68-5、1192-99-0、91914-06-6
PubChem CID
70482
DTXSID
DTXSID20143120
ChEBI
CHEBI:194862
UNII
C173P2D70Y
EC Number
213-713-9、618-801-4
Nikkaji
J110.369E

Properties

Computed structural propertiesFilling in

XLogP
0.1
Topological polar surface area
29.1 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
1
Rotatable bonds
0
Heavy atoms
8
Formal charge
0
Complexity
167

Physicochemical properties

Melting point
183 · 183-187 °C (lit.)
Boiling point
304.2 · 304.2±15.0 °C(Predicted)
Density
1.053 · 1.053±0.06 g/cm3(Predicted)
storage temp.
Sealed in dry,Room Temperature
solubility
DMSO (Slightly), Ethanol (Slightly), Methanol (Slightly)
form
Solid
pka
12.43 · 12.43±0.10(Predicted)
color
Pale Yellow to Light Yellow
BRN
107074 · 107074
InChI
InChI=1S/C6H7NO/c1-5-2-3-6(8)7-4-5/h2-4H,1H3,(H,7,8)
InChIKey
SOHMZGMHXUQHGE-UHFFFAOYSA-N
SMILES
C1(=O)NC=C(C)C=C1
CAS DataBase Reference
1003 · 1003-68-5(CAS DataBase Reference)
FDA UNII
173 P2D70Y · C173P2D70Y
NIST Chemistry Reference
2 · 2(1H)-pyridinone, 5-methyl-(1003-68-5)

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 · 6 items

This chemical does not meet GHS hazard criteria for 8% (4 of 50) of reports.

Danger

H302 (80%): Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 50 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Warning

Hazard information

Regulatory InformationStatus: Active Update: 27-02-2017 https://echa.europa.eu/registration-dossier/-/registered-dossier/18172
Hazard Classes and Categories · 2 items

Acute Tox. 4 (80%)

Skin Irrit. 2 (100%)

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
hs_code
29333990
risk_code
22-37/38-41-36/37/39
Signal word
Danger
Symbol(GHS)
GHS05,GHS07
hazard_code
Xn
safety_code
26-36-37
Storage Class
11 - Combustible Solids
target organs
Respiratory system

Chemistry & industry

Applications · 1 item

Uses2-Hydroxy-5-methylpyridine (cas# 1003-68-5) is a useful compound for organic synthesis. In particular it has been used for the diastereoselective preparation of cyclobutane-fused pyridinyl sulfonyl fluorides. 2-hydroxy-5-methylpyridine and Iodobenzene were the impurities present in Pirfenidone (PFD) drug substance. PFD is a novel antifibrotic agent approved for mild to moderate Idiopathic pulmonary fibrosis (IPF) as orphan drug[1].

Upstream & downstream products

Downstream products

5-Methyl-2-piperidinone2-Mercapto-5-methylpyridine2-methyl-2-(5-methylpyridin-2-yloxy)propanoic acid5,5'-diMethoxycarbonyl-2,2'-bipyridine3-Methyl-2(1H)-Pyridinethione1,5-Dimethyl-2(1H)-pyridone

Additional notes

DefinitionChEBI: 5-Methyl-2-pyridinol is a member of methylpyridines.

Related reactions

32 records
New reaction record
HRID 12423 reaction equation
HRID 12423As reactantuspto-grants-2010_06
HRID 56073 reaction equation
HRID 56073As reactantuspto-grants-2016_09
HRID 97591 reaction equation
HRID 97591As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 309583 reaction equation
HRID 309583As reactantTraining data from https://doi.org/10.1039/C8SC04228D (8/10)
HRID 401507 reaction equation
HRID 401507As reactantuspto-grants-2014_06
HRID 441816 reaction equation
HRID 441816As reactantuspto-grants-1977_08
HRID 441817 reaction equation
HRID 441817As reactantuspto-grants-1977_08
HRID 441818 reaction equation
HRID 441818As reactantuspto-grants-1977_08
Page 1 of 4

Compound notes

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UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
5 · GHS05,GHS07
Signal word
Danger
Hazard statements
302 · H302-H315-H318-H335
Precautionary statements
280 · P280-P301+P312+P330-P302+P352-P305+P351+P338+P310
target organs
Respiratory system
PPE
95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes
Xn
Risk Statements
22 · 22-37/38-41-36/37/39
Safety Statements
26 · 26-36-37
WGK Germany
3 · 3
HS Code
29333990 · 29333990
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
4 OralEye · Acute Tox. 4 OralEye Dam. 1Skin Irrit. 2STOT SE 3
REACH Registrations
Active
Hazard statements
H302-H315-H318-H335
REACH Registrations
Active
Hazard Classifications
Acute Tox. 4 OralEye Dam. 1Skin Irrit. 2STOT SE 3
Precautionary statements
P280-P301+P312+P330-P302+P352-P305+P351+P338+P310