ChemicalBook--->CAS DataBase List--->66346-83-6

66346-83-6

66346-83-6 Structure

66346-83-6 Structure
IdentificationBack Directory
[Name]

6-Chloropyridazine-3-carboxamide
[CAS]

66346-83-6
[Synonyms]

CML-035
6-Chloropyridazine-3-carboxamide
3-Chloro-pyridazine-6-carboxamide
3-PyridazinecarboxaMide, 6-chloro-
6-Chloropyridazine-3-carboxamide 97%
6-Chloropyridazine-3-carboxamide ISO 9001:2015 REACH
3-Carbamoyl-6-chloropyridazine, 3-(Aminocarbonyl)-6-chloro-1,2-diazine
[Molecular Formula]

C5H4ClN3O
[MDL Number]

MFCD09258882
[MOL File]

66346-83-6.mol
[Molecular Weight]

157.56
Chemical PropertiesBack Directory
[Melting point ]

232-234 °C(Solv: water (7732-18-5))
[Boiling point ]

424.6±30.0 °C(Predicted)
[density ]

1.478±0.06 g/cm3(Predicted)
[storage temp. ]

under inert gas (nitrogen or Argon) at 2-8°C
[form ]

solid
[pka]

13.62±0.50(Predicted)
[color ]

Off-white
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
[Hazard Codes ]

Xi
[HS Code ]

2933998090
Spectrum DetailBack Directory
[Spectrum Detail]

6-Chloropyridazine-3-carboxamide(66346-83-6)1HNMR
Hazard InformationBack Directory
[Synthesis]

3-Pyridazinecarboxylic acid, 6-chloro-, butyl ester

98995-11-0

6-Chloropyridazine-3-carboxamide

66346-83-6

1. An excess of gaseous ammonia was slowly passed into a solution of n-butyl 6-chloropyridazine-3-carboxylate (40 g) in methanol (280 ml) in an ice bath. 2. The reaction mixture was stirred at room temperature for 4 h. 3. Upon completion of the reaction, the solid product was collected by filtration and washed with methanol (20 ml). 4. Drying gave 6-chloropyridazine-3-carboxamide (28.05 g, yield 95.5%) with a melting point of 243-245°C. 5. NMR hydrogen spectroscopy (DMSO-d6) data: δ 7.96 (broad peak, 1H), 8.07 (double peak, 1H, J = 8.3 Hz), 8.22 (double peak, 1H, J = 8.3 Hz), 8.52 (broad peak, 1H). 6-Chloropyridazine-3-carboxamide was dried.

[References]

[1] Patent: US6100258, 2000, A
[2] Patent: US5843942, 1998, A
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