3-Methyl-3-pyrazolin-5-one

Modify Date: 2024-01-04 19:12:10

3-Methyl-3-pyrazolin-5-one Structure
3-Methyl-3-pyrazolin-5-one structure
Common Name 3-Methyl-3-pyrazolin-5-one
CAS Number 4344-87-0 Molecular Weight 98.103
Density 1.3±0.1 g/cm3 Boiling Point 309.7 °C at 760 mmHg
Molecular Formula C4H6N2O Melting Point 223-225 °C(lit.)
MSDS Chinese USA Flash Point N/A
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name 3-Methyl-3-Pyrazolin-5-One
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.3±0.1 g/cm3
Boiling Point 309.7 °C at 760 mmHg
Melting Point 223-225 °C(lit.)
Molecular Formula C4H6N2O
Molecular Weight 98.103
Exact Mass 98.048012
PSA 48.65000
LogP -1.08
Index of Refraction 1.599

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S37/39
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2933199090

 Synthetic Route

 Customs

HS Code 2933199090
Summary 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles3

More Articles
3-Methyl-3-pyrazolin-5-one. Zhang Z, et al.

Acta Crystallogr. Sect. E Struct. Rep. Online 60(2) , o315-16, (2004)

The crystal and molecular structure of 3-methyl-3-pyrazolin-5-one. De Camp WH and Stewart JM.

Acta Crystallogr. B 27(6) , 1227-32, (1971)

Aliphatic aldehydes in the synthesis of condensed 4-alkyl (cycloalkyl)-2-amino-3-cyano-4H-pyrans. Klokol GV, et al.

Chem. Heterocycl. Comp. 35(10) , 1183-86, (1999)

 Synonyms

MFCD00010705
3-Methyl-3-pyrazolin-5-one
3-Methyl-5-hydroxypyrazole
5-Methyl-2,4-dihydro-3H-pyrazol-3-one
3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-
3-methyl-2-pyrazolin-5-one