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2-Methyl-1,2,3,4-tetrahydrophthalazine-1,4-dione

HCID 314939
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Basic information

CAS
18393-54-9
Standard SMILES
Cn1[nH]c(=O)c2ccccc2c1=O
InChIKey
RDVYNYHUUGFVQN-UHFFFAOYSA-N
Molecular formula
C9H8N2O2
Average molar mass
176.17 g/mol
Monoisotopic mass
176.0585775

Names & identifiers

Preferred name
2-Methyl-1,2,3,4-tetrahydrophthalazine-1,4-dione
IUPAC
3-methyl-2H-phthalazine-1,4-dione
English name
2-methyl-2,3-dihydro-1,4-phthalazinedione
Molecular formula
C9H8N2O2
Molecular weight
176.17

Names & synonyms

2-methyl-1,2,3,4-tetrahydrophthalazine-1,4-dioneRefChem:474747831-722-118393-54-92-Methyl-2,3-dihydrophthalazine-1,4-dione4-hydroxy-2-methylphthalazin-1(2H)-one3-methyl-2H-phthalazine-1,4-dioneMFCD032311012-methyl-2,3-dihydro-1,4-phthalazinedione1,4-Phthalazinedione, 2,3-dihydro-2-methyl-NSC235820Maybridge1_007040
Show more names
MLS000089936SCHEMBL1101962SCHEMBL1333571SCHEMBL4141656CHEMBL1371775SCHEMBL31091767HMS561H22DTXSID00311022

Database identifiers

CAS
18393-54-9
PubChem CID
314939
DTXSID
DTXSID00311022
ChEMBL
CHEMBL1371775
EC Number
831-722-1
Nikkaji
J3.050.167E

Properties

Computed structural properties

XLogP
0.6
Topological polar surface area
49.4 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
13
Formal charge
0
Complexity
252

Physicochemical properties

Melting point
238 °C · 238 °C
Density
1.292 · 1.292±0.06 g/cm3(Predicted)
pka
10.98 · 10.98±0.20(Predicted)
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
319 · H319-H335-H315
Precautionary statements
264 · P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P

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)

The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Hazard information

Hazard Classes and CategoriesSkin Irrit. 2 (100%)

Safety data

Signal word
Warning
Symbol(GHS)
GHS07
Hazard statements
H319-H335-H315
Precautionary statements
P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P

Chemistry & industry

Upstream & downstream products

Upstream raw materials

6-NitrophthalideMethylhydrazine

Related reactions

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Compound notes

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