2,3-Dihydro-1,4-phthalazinedione
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2,3-Dihydro-1,4-phthalazinedione
structure -
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CAS No:
1445-69-8
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Formula:
C8H6N2O2
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Chemical Name:
2,3-Dihydro-1,4-phthalazinedione
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Synonyms:
1,4-Phthalazinedione,2,3-dihydro-;2,3-Dihydro-1,4-phthalazinedione;Phthalhydrazide;Phthalocyclohydrazide;Hydrazine,1,2-(1,2-phenylenedicarbonyl)-;Phthalic acid cyclic hydrazide;N,N′-Phthaloylhydrazine;4-Hydroxyphthalazin-1(2H)-one;1,4-Phthalazinediol;1,2-Benzenedicarboxylic acid,cyclic hydrazide;1,4-Dihydroxyphthalazine;NSC 201511;NSC 651;Phthalazine-1,4(2H,3H)-dione;1,2,3,4-Tetrahydrophthalazine-1,4-dione;2519-98-4;23243-37-0
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CAS No:
2,3-Dihydro-1,4-phthalazinedione Basic Attributes
162.15
162.15
135926
215-893-4
201511|651
29280000
Characteristics
58.2
0.9
White Powder and Chunks
1.3264 (rough estimate)
>300 °C
288.82°C (rough estimate)
270.4ºC
1.5770 (estimate)
Soluble in acetone and acetic acid.
Store in a cool, dry place. Keep container closed when not in use.
1.41E-11mmHg at 25°C
Safety Information
NONH for all modes of transport
3
24/25
TH8890080
Stable under normal temperatures and pressures.
|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 2 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,3-Dihydro-1,4-phthalazinedione Use and Manufacturing
From the reaction of phthalic anhydride and hydrazine hydrate. Ethanol, hydrazine hydrate and phthalic anhydride were put into the reaction pot in turn, stirred, and heated to reflux for 8h. Evaporate the ethanol until the reaction becomes a paste. Cool to 40℃, add appropriate amount of water, spin filter, wash to pH 6.5, and dry to obtain diketophthalazine.
Phthalic Hydrazide is a reagent in the synthesis in various pyrazolophthalazine derivatives.
Computed Properties
Molecular Weight:162.15
XLogP3:0.9
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Exact Mass:162.042927438
Monoisotopic Mass:162.042927438
Topological Polar Surface Area:58.2
Heavy Atom Count:12
Complexity:203
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2,3-Dihydro-1,4-phthalazinedione
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