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2-methyl-2H-1,4-benzoxazin-3(4H)-one

HCID 301730
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Basic information

CAS
21744-83-2
Standard SMILES
CC1Oc2ccccc2NC1=O
InChIKey
PILVMCZSXIINLV-UHFFFAOYSA-N
Molecular formula
C9H9NO2
Average molar mass
163.17 g/mol
Monoisotopic mass
163.06332853

Names & identifiers

Preferred name
2-methyl-2H-1,4-benzoxazin-3(4H)-one
IUPAC
2-methyl-4H-1,4-benzoxazin-3-one
English name
2-Methyl-[1,4] Benzoxazin-3(4H)-one
Molecular formula
C9H9NO2
Molecular weight
163.17

Names & synonyms

2-methyl-2H-1,4-benzoxazin-3(4H)-oneDTXSID40306795RefChem:475250DTXCID10257922812-593-021744-83-22-Methyl-2H-benzo[b][1,4]oxazin-3(4H)-one2-methyl-4H-1,4-benzoxazin-3-one2-Methyl-[1,4] Benzoxazin-3(4H)-one2-Methyl-1,4-benzoxazin-3-oneMFCD041419262-methyl-1,4-benzoxazin-3-(4h)-one
Show more names
2-Methyl-4H-benzo[1,4]oxazin-3-one2-Methyl-2H-1,4-benzoxazin-3(4H)-one,97%JRH-09901, 2-Methyl-2H-benzo[b][1,4]oxazin-3(4H)-one, 97%
CHEMBL2407990NSC1798042-methyl-3,4-dihydro-2H-1,4-benzoxazin-3-one2H-1,4-Benzoxazin-3(4H)-one, 2-methyl-BAS 07153752SCHEMBL1450577SCHEMBL1451021SCHEMBL1451023

Database identifiers

CAS
21744-83-2
PubChem CID
301730
DTXSID
DTXSID40306795
ChEMBL
CHEMBL2407990
EC Number
812-593-0
Nikkaji
J848.682D

Properties

Computed structural properties

XLogP
1.3
Topological polar surface area
38.3 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
12
Formal charge
0
Complexity
193

Physicochemical properties

Melting point
143 · 143-144 °C
Boiling point
330.6 · 330.6±31.0 °C(Predicted)
Density
1.166 · 1.166±0.06 g/cm3(Predicted)
storage temp.
Sealed in dry,Room Temperature
form
solid
pka
12.92 · 12.92±0.40(Predicted)
color
dark brown
InChI
1S/C9H9NO2/c1-6-9(11)10-7-4-2-3-5-8(7)12-6/h2-6H,1H3,(H,10,11)
InChIKey
PILVMCZSXIINLV-UHFFFAOYSA-N
SMILES
O=C1NC(C=CC=C2)=C2OC1C
CAS DataBase Reference
21744 · 21744-83-2
UNSPSC Code
12352200 · 12352200
NACRES
21 · NA.21
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
315 · H315-H319-H335

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 · 4 items

Warning

H315 (100%): 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 2 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazard Classes and CategoriesSkin Irrit. 2 (100%)

Safety data

wgk
WGK 3
hs_code
2914390090
Signal word
Warning
Symbol(GHS)
GHS07
Storage Class
11 - Combustible Solids
Hazard statements
H315-H319-H335
Hazard Classifications
Acute Tox. 4 Oral
Precautionary statements
P261-P280a-P304+P340-P305+P351+P338-P405-P501a

Chemistry & industry

Upstream & downstream products

Upstream raw materials

2-AminophenolPropanenitrile, 2-(2-nitrophenoxy)-Ethyl 2-bromopropionateN,N-DimethylformamidePotassium carbonate

Suppliers

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Related reactions

5 records
New reaction record
HRID 35179 reaction equation
HRID 35179As reactantuspto-grants-1988_08
HRID 840368 reaction equation
HRID 840368As reactantuspto-grants-2002_04
HRID 1090306 reaction equation
HRID 1090306As reactantuspto-grants-1992_01
HRID 2313461 reaction equation
HRID 2313461As reactantTraining data from https://doi.org/10.1039/C8SC04228D (10/10)
HRID 2414189 reaction equation
HRID 2414189As reactantuspto-grants-1988_01

Compound notes

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On this pageBasic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
Precautionary statements
261 · P261-P280a-P304+P340-P305+P351+P338-P405-P501a
WGK Germany
3 · WGK 3
HS Code
2914390090 · 2914390090
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
4 Oral · Acute Tox. 4 Oral