Basic information
- Standard SMILES
NNC(N)=O- InChIKey
DUIOPKIIICUYRZ-UHFFFAOYSA-N- Molecular formula
- CH5N3O
- Average molar mass
- 75.07 g/mol
- Monoisotopic mass
- 75.04326178
Overview
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 carbohydrazide, a member of ureas and a one-carbon compound.
Names & identifiers
- Preferred name
- Semicarbazide
- IUPAC
- aminourea
- English name
- Semicarbazide
- Molecular formula
- CH5N3O
- Molecular weight
- 75.07
Names & synonyms
Show more names
Database identifiers
- CAS
57-56-7- PubChem CID
- 5196
- DTXSID
DTXSID7043823- ChEMBL
CHEMBL903- ChEBI
CHEBI:28306- UNII
- 37QUC23K2X
- EC Number
- 200-339-6
- Nikkaji
- J4.582I
Properties
Computed structural properties
- XLogP
- -1.8
- Topological polar surface area
- 81.1 Ų
- Hydrogen bond donors
- 3
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 42.2
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 96 °C · 96°C
- Boiling point
- 133.71 °C · 133.71°C (rough estimate)
- Density
- 1.286 · 1.286±0.06 g/cm3(Predicted)
- refractive index
- 1.4451 · 1.4451 (estimate)
- storage temp.
- 2 · 2-8°C, protect from light
- form
- powder
- pka
- 1 · pK1:3.53(+1) (25°C,μ=0.1)
- Appearance
- White to off-white Solid
- InChI
- 1S/CH5N3O/c2-1(5)4-3/h3H2,(H3,2,4,5)
- InChIKey
- DUIOPKIIICUYRZ-UHFFFAOYSA-N
- SMILES
- NNC(N)=O
- CAS DataBase Reference
- 57 · 57-56-7(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 37 QUC23K2X · 37QUC23K2X
- NIST Chemistry Reference
- Hydrazinecarboxamide-(57-56-7)
- EPA Substance Registry System
- Semicarbazide (57-56-7)
- UNSPSC Code
- 12352125 · 12352125
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 6 · GHS06
- Signal word
- Danger
- Hazard statements
- 335 · H335-H319-H315-H301
- Precautionary statements
- 264 · P264-P270-P301+P310-P321-P330-P405-P501-P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Faceshields, Gloves
- Hazard Codes
- Xn
- Risk Statements
- 22 · 22
- Safety Statements
- 22 · 22
- WGK Germany
- 3 · 3
- TSCA
- TSCA listed
- Storage Class
- 13 · 13 - Non Combustible Solids
Safety & regulation
GHS classification
GHS Classification
Danger
H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 76 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Hazards Summary
Developmental toxicity and teratogenicity observed in rats from single 17 mg/kg doses; Teratogenicity also observed in chickens; [REPROTOX] Causes convulsion in oral, intraperitoneal, and intravenous lethal-dose studies of mice; [RTECS] See Semicarbazide hydrochloride.
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Faceshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- risk_code
- 22
- Signal word
- Danger
- Symbol(GHS)
- GHS06
- hazard_code
- Xn
- safety_code
- 22
- Storage Class
- 13 - Non Combustible Solids
- Hazard statements
- H335-H319-H315-H301
- Precautionary statements
- P264-P270-P301+P310-P321-P330-P405-P501-P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
Chemistry & industry
Pharmacology
Uses & manufacturing
Uses
Produced in trace amounts from heat processing of jar-seals containing azodicarbonamide; [REPROTOX] Found in foods from the thermal breakdown of azodicarbonamide in sealing gaskets used on metal lids of jars and bottles; Also a metabolite of the veterinary medication nitrofurazone (banned in the EU); [ExPub: The EFSA Journal (2005) 219, 1-36]
Applications
DescriptionSemicarbazide (SM) is a metabolite of the nitrofurane Nitrofurazone (5-nitro-2- furaldehyde-semicarbazone), used as indicator to detect the use of nitrofurazone in food-producing animals due to their carcinogenic properties the use of nitrofurans is prohibited within the EU in animal breeding (Commission Regulation 37/2010) . to harmonise the detection of semicarbazide a Minimum Required Performance Limit (MRPL) of 1 µg/kg is set within the EU (Commission Decision 2003/181).
UsesSemicarbazide is used as a potent nucleophile; forms many crystalline carbonyl derivatives.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers50 total
Additional notes
DefinitionChEBI: A monocarboxylic acid amide that is urea where one of the amino groups has been replaced with hydrazine.
Related reactions
Linked notes
Loading…