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Home > Encyclopedia > 3,6-Dihydroxy-4,5-dimethylpyridazine

3,6-Dihydroxy-4,5-dimethylpyridazine

3,6-Dihydroxy-4,5-dimethylpyridazine structure

3,6-Dihydroxy-4,5-dimethylpyridazine 

structure
  • CAS No:

    5754-17-6

  • Formula:

    C6H8N2O2

  • Chemical Name:

    3,6-Dihydroxy-4,5-dimethylpyridazine

  • Synonyms:

    diMethylpyridazine-3,6-diol;4,5-Dimethylpyridazine-3,6-diol;3,6-Dihydroxy-4,5-dimethylpyridazine;4,5-dimethyl-1,2-dihydropyridazine-3,6-dione;1,2-Dihydro-4,5-dimethyl-3,6-pyridazinedione;Dimethylmaleic acid dimethyl cyclic hydrazide;4,5-dimethyl-1,2-dihydropyridazine-3,6-quinone;3,6-DIHYDROXY-4,5-DIMETHYLPYRIDAZINE (4,5-DIMETHYLMALEIC HYDRAZIDE);3,6-Dihydroxy-4,5-dimethylpyridazine, 3,6-Dihydroxy-4,5-dimethyl-1,2-diazine

  • Categories:

    Pharmaceutical Intermediates  >  Heterocyclic Compound

3,6-Dihydroxy-4,5-dimethylpyridazine Basic Attributes

140.14

140.05900

1312995-182-4

50756

2933990090

Characteristics

58.2

-0.2

1.16g/cm3

347-351 °C

422.4°C at 760 mmHg

209.3ºC

1.481

Safety Information

T

Toxic

3,6-Dihydroxy-4,5-dimethylpyridazine Use and Manufacturing

Hydrazine hydrochloride (58 g, 552 mmol) is dissolved in hot water (300 mL) and dimethyl maleic anhydride (58 g, 460 mmol) is added in portions and the suspension stirred at reflux for 16 h. The suspension is cooled down to room temperature and the precipitate is filtered, washed with water and dried at 40° C. under vacuum to yield 4, 5-dimethyl-1, 2-dihydro-pyridazine-3, 6-dione (36) (64 g, 99percent).Hydrazine hydrochloride (58 g, 552 mmol) is dissolved in hot water (300 mL) and dimethyl maleic anhydride (58 g, 460 mmol) is added in portions and the suspension stirred at reflux for 16 h. The suspension is cooled down to room temperature and the precipitate is filtered, washed with water and dried at 40° C. under vacuum to yield 4, 5-dimethyl-1, 2-dihydro-pyridazine-3, 6-dione (36) (64 g, 99percent).

Computed Properties

Molecular Weight:140.14
XLogP3:-0.2
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Exact Mass:140.058577502
Monoisotopic Mass:140.058577502
Topological Polar Surface Area:58.2
Heavy Atom Count:10
Complexity:206
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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