3-Methyl-3-pyrazolin-5-one

[ 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

[ Symbol ]:

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

Click to get detail synthetic route

Precursor

DownStream

[ 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%

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)

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