2-(1-Methylethylidene)hydrazinecarboxamide
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2-(1-Methylethylidene)hydrazinecarboxamide
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CAS No:
110-20-3
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Formula:
C4H9N3O
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Chemical Name:
2-(1-Methylethylidene)hydrazinecarboxamide
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Synonyms:
Hydrazinecarboxamide,2-(1-methylethylidene)-;Acetone,semicarbazone;2-(1-Methylethylidene)hydrazinecarboxamide;NSC 456;[(Propan-2-ylidene)amino]urea;(Propan-2-ylideneamino)urea;2-(Propan-2-ylidene)hydrazinecarboxamide
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CAS No:
2-(1-Methylethylidene)hydrazinecarboxamide Basic Attributes
115.13
115.13
970110
203-746-7
456
DTXSID9059383
2928000090
Characteristics
67.5
-1.04
Clear liquid
1.2±0.1 g/cm3
187 °C
1.512
0.54 M
Intravenous-Mouse LD50: 90 mg/kg
Flammable; decomposes by heating to release toxic nitrogen oxide fumes
Safety Information
22
22-36/37-36
AL7175000
Warehouse ventilated, low temperature and dry
P264, P270, P301+P310, P321, P330, P405, P501
H301
|Danger|H301 (97.67%): Toxic if swallowed [Danger Acute toxicity, oral]|P264, P270, P301+P310, P321, P330, P405, and P501|Aggregated GHS information provided by 43 companies from 3 notifications to the ECHA C&L Inventory.
2-(1-Methylethylidene)hydrazinecarboxamide Use and Manufacturing
Take hydrazine hydrate and urea as raw materials, condense to obtain semicarbazide liquid, and then synthesize with acetone to refine the finished product. Mix hydrazine hydrate and urea, heat to 97-104°C and reflux for 6-7h. Cool down to 45°C and filter to obtain semicarbazide liquid. The filtrate is cooled to 25°C, acetone is added, and the temperature is naturally increased to 50-60°C for 1 hour. Cool to below 20°C, filter, and dry the filter cake to obtain acetone semicarbazone. The weight ratio is: hydrazine hydrate (40%): urea: acetone=1: 0.67: 0.56. The yield is 90%. As an intermediate, the appearance is white powder with a melting point of 185-189°C. Raw material consumption quota: hydrazine hydrate (40%) 300kg/t, urea (industrial product) 870kg/t, acetone (industrial product) 720kg/t.
This product is used as an intermediate for the production of furantanidine.
Hydrazinecarboxamide, 2-(1-methylethylidene)-: INACTIVE
Computed Properties
Molecular Weight:115.13
XLogP3:-0.8
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:115.074561919
Monoisotopic Mass:115.074561919
Topological Polar Surface Area:67.5
Heavy Atom Count:8
Complexity:115
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2-(1-Methylethylidene)hydrazinecarboxamide
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