Record Information
Version2.0
Creation Date2009-06-17 23:53:06 UTC
Update Date2014-12-24 20:23:03 UTC
Accession NumberT3D1016
Identification
Common NameTiocarbazil
ClassSmall Molecule
DescriptionTiocarbazil is a thiocarbamate herbicide used to control barnyard grasses in submerged rice fields. It was introduced in the early 1970s. Thiocarbamates are mainly used in agriculture as insecticides, herbicides, and fungicides. Additional uses are as biocides for industrial or other commercial applications, and in household products. Some are used for vector control in public health. Thiocarbamates are mostly liquids or solids with low melting points.
Compound Type
  • Amine
  • Carbamate
  • Ether
  • Herbicide
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
Carbamic acid, di-sec-butylthio-, S-benzyl ester
Caswell No. 082AA
Drepamon
N,n-di-sec-butyl-s-benzylthiocarbamate
S-(Phenylmethyl) bis(1-methylpropyl)carbamothioate
S-(Phenylmethyl) bis(1-methylpropyl)carbamothioate (9CI)
S-benzyl di-sec-butylthiocarbamate
S-benzyl n,n-di-sec-butyl thiocarbamate
S-benzyl-n,n-di-sec-butyl thiocarbamate
S-benzyl-n,n-di-sec-butylthiocarbamate
S-Phenylmethyl-N,N-bis(1-methylpropyl)carbamothioate
Thiocarbazil
Tiocarbenil
Triocarbazil
Chemical FormulaC16H25NOS
Average Molecular Mass279.441 g/mol
Monoisotopic Mass279.166 g/mol
CAS Registry Number36756-79-3
IUPAC NameN,N-bis(butan-2-yl)(benzylsulfanyl)formamide
Traditional Nametiocarbazil
SMILESCCC(C)N(C(C)CC)C(=O)SCC1=CC=CC=C1
InChI IdentifierInChI=1S/C16H25NOS/c1-5-13(3)17(14(4)6-2)16(18)19-12-15-10-8-7-9-11-15/h7-11,13-14H,5-6,12H2,1-4H3
InChI KeyInChIKey=PHSUVQBHRAWOQD-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassNot Available
Direct ParentBenzene and substituted derivatives
Alternative Parents
Substituents
  • Monocyclic benzene moiety
  • Thiocarbamic acid derivative
  • Carbonic acid derivative
  • Sulfenyl compound
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceColorless liquid
Experimental Properties
PropertyValue
Melting Point< 25°C
Boiling PointNot Available
Solubility0.0025 mg/mL at 30°C [SHIU,WY et al. (1990)]
LogPNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.0042 g/LALOGPS
logP4.71ALOGPS
logP5ChemAxon
logS-4.8ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area20.31 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity84.22 m³·mol⁻¹ChemAxon
Polarizability33.26 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001l-7790000000-3f4654ea081271c82b792016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-052f-9710000000-71e40e98abdf908bfb972016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-82b17476a7218bf7f21f2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0940000000-bb23498848de748de3242016-08-04View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0fic-5900000000-bdf386eb95dc4d49b63d2016-08-04View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0f92-9800000000-2b87e85350fbe46cfc912016-08-04View Spectrum
Toxicity Profile
Route of ExposureInhalation (1) ; oral (1); dermal (1)
Mechanism of ToxicitySome thiocarbamates (EPTC, Molinate, Pebulate, and Cycloate) share a common mechanism of toxicity, i.e. the inhibition of acetylcholinesterase. An acetylcholinesterase inhibitor suppresses the action of acetylcholine esterase. Because of its essential function, chemicals that interfere with the action of acetylcholine esterase are potent neurotoxins, causing excessive salivation and eye-watering in low doses. Headache, salivation, nausea, vomiting, abdominal pain and diarrhea are often prominent at higher levels of exposure. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. The result of acetylcholine esterase inhibition is that acetylcholine builds up and continues to act so that any nerve impulses are continually transmitted and muscle contractions do not stop.
MetabolismAs a general rule, thiocarbamates can be absorbed via the skin, mucous membranes, and the respiratory and gastrointestinal tracts. They are eliminated quite rapidly, mainly via expired air and urine. Two major pathways exist for the metabolism of thiocarbamates in mammals. One is via sulfoxidation and conjugation with glutathione. The conjugation product is then cleaved to a cysteine derivative, which is metabolized to a mercapturic acid compound. The second route is oxidation of the sulfur to a sulfoxide, which is then oxidized to a sulfone, or hydroxylation to compounds that enter the carbon metabolic pool.
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesThiocarbamates are widely used throughout the world and are produced in great quantities, mainly as herbicides and fungicides.
Minimum Risk LevelNot Available
Health EffectsData concerning the effects of thiocarbamates on man are scarce. However, cases of irritation and sensitization have been observed among agricultural workers. Some thiocarbamates, e.g., molinate, have an effect on sperm morphology and, consequently, on reproduction. However, no teratogenic effects have been observed. The results of mutagenicity studies have shown that thiocarbamates containing dichloroallyl groups are highly mutagenic. Some thiocarbamates are acetylcholine esterase inhibitors. Acute exposure to cholinesterase inhibitors can cause a cholinergic crisis characterized by severe nausea/vomiting, salivation, sweating, bradycardia, hypotension, collapse, and convulsions. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved.
SymptomsAs with organophosphates, the signs and symptoms are based on excessive cholinergic stimulation. Unlike organophosphate poisoning, carbamate poisonings tend to be of shorter duration because the inhibition of nervous tissue acetylcholinesterase is reversible, and carbamates are more rapidly metabolized. Muscle weakness, dizziness, sweating and slight body discomfort are commonly reported early symptoms. Headache, salivation, nausea, vomiting, abdominal pain and diarrhea are often prominent at higher levels of exposure. Contraction of the pupils with blurred vision, incoordination, muscle twitching and slurred speech have been reported. (2)
TreatmentTreatment of carbamate poisoning is similar to that of organophosphate poisoning in that atropine sulfate injections readily reverse the effects. For acute exposures and first aid: EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID37523
ChEMBL IDNot Available
ChemSpider ID34422
KEGG IDC18898
UniProt IDNot Available
OMIM ID
ChEBI IDNot Available
BioCyc IDNot Available
CTD IDC013514
Stitch IDTiocarbazil
PDB IDNot Available
ACToR ID13550
Wikipedia LinkNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
  1. IPCS Intox Database (1987). Antimony pentoxide. [Link]
  2. Fishel F (2009). Pesticide Toxicity Profile: Carbamate Pesticides. University of Florida, IFAS Extension. [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Serine hydrolase activity
Specific Function:
Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Role in neuronal apoptosis.
Gene Name:
ACHE
Uniprot ID:
P22303
Molecular Weight:
67795.525 Da
References
  1. Fishel F (2009). Pesticide Toxicity Profile: Carbamate Pesticides. University of Florida, IFAS Extension. [Link]
General Function:
Identical protein binding
Specific Function:
Esterase with broad substrate specificity. Contributes to the inactivation of the neurotransmitter acetylcholine. Can degrade neurotoxic organophosphate esters.
Gene Name:
BCHE
Uniprot ID:
P06276
Molecular Weight:
68417.575 Da
References
  1. Fishel F (2009). Pesticide Toxicity Profile: Carbamate Pesticides. University of Florida, IFAS Extension. [Link]