Semicarbazide
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Semicarbazide
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CAS No:
57-56-7
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Formula:
CH5N3O
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Chemical Name:
Semicarbazide
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Synonyms:
Hydrazinecarboxamide;Isosemicarbazide;Carbamic acid,hydrazide;Carbazamide;Urea,amino-;Hydrazine,(aminocarbonyl)-;Carbazimidic acid;Semicarbazide;Carbamylhydrazine;Aminourea
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CAS No:
Description
ChEBI: A monocarboxylic acid amide that is urea where one of the amino groups has been replaced with hydrazine.
Semicarbazide is a monocarboxylic acid amide that is urea where one of the amino groups has been replaced with hydrazine. It is a monocarboxylic acid amide, a one-carbon compound, a member of ureas and a carbohydrazide.
Safety Information
NONH for all modes of transport
3
22
22
Xn
P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501
H301
|Danger|H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P310, 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 71 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Drug Information
Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included. (See all compounds classified as Carcinogens.)
carbamylhydrazine
Semicarbazide Use and Manufacturing
1. The urea-hydrazine hydrate synthesis method is obtained by the condensation of urea and hydrazine hydrate. Put 40% hydrazine hydrate and urea at a molar ratio of 1.515:1 into the reaction pot and mix, stir and heat, and reflux at 95-103°C for 8 hours. Cool down and filter to obtain semicarbazide aqueous solution, which can be directly used in organic synthesis. Sometimes the semicarbazide aqueous solution is added with hydrochloric acid, and then filtered to obtain semicarbazide hydrochloride [CAS: 563-41-7]. The melting point of semicarbazide hydrochloride is 175°C. 2. The hydrazine sulfate-sodium cyanate method is prepared by the reaction of hydrazine sulfate and sodium cyanate.
Organic synthetic materials are also intermediates for medicines and pesticides and reagents for measuring aldehydes and ketones. Used in the production of nitrofuranline, nitrofurantoin and other drugs.
Hydrazinecarboxamide: ACTIVE
Computed Properties
Molecular Weight:75.07
XLogP3:-1.8
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:2
Exact Mass:75.043261792
Monoisotopic Mass:75.043261792
Topological Polar Surface Area:81.1
Heavy Atom Count:5
Complexity:42.2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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