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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Chemical structure
Display Name:
3-methyl-1-phenyl-5-pyrazolone
EC Number:
201-891-0
EC Name:
3-methyl-1-phenyl-5-pyrazolone
CAS Number:
89-25-8
Molecular formula:
C10H10N2O
IUPAC Name:
5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • PHENYL METHYL PYRAZOLONE
  • PMP
  • Rodol PMP
  • A039
    (Colipa-number)

    Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: particulate/powder
    Degree of purity:
    >= 98.5 - <= 100 % (w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    3-methyl-1-phenyl-5-pyrazolone
    EC Number:
    201-891-0
    EC Name:
    3-methyl-1-phenyl-5-pyrazolone
    CAS Number:
    89-25-8
    Molecular formula:
    C10H10N2O
    IUPAC Name:
    5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
    Impurity 1
    Chemical structure
    Reference substance name:
    Phenylhydrazine
    EC Number:
    202-873-5
    EC Name:
    Phenylhydrazine
    CAS Number:
    100-63-0
    Molecular formula:
    C6H8N2
    IUPAC Name:
    phenylhydrazine

    Legal Entity Composition(s) open all close all

    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    3-methyl-1-phenyl-5-pyrazolone
    EC Number:
    201-891-0
    EC Name:
    3-methyl-1-phenyl-5-pyrazolone
    CAS Number:
    89-25-8
    Molecular formula:
    C10H10N2O
    IUPAC Name:
    5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    3-methyl-1-phenyl-5-pyrazolone
    EC Number:
    201-891-0
    EC Name:
    3-methyl-1-phenyl-5-pyrazolone
    CAS Number:
    89-25-8
    Molecular formula:
    C10H10N2O
    IUPAC Name:
    5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    3-methyl-1-phenyl-5-pyrazolone
    EC Number:
    201-891-0
    EC Name:
    3-methyl-1-phenyl-5-pyrazolone
    CAS Number:
    89-25-8
    Molecular formula:
    C10H10N2O
    IUPAC Name:
    5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

    Composition(s) generated upon use

    Other types of composition(s)