1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea CAS 34014-18-1

Introduction：Basic information about 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea CAS 34014-18-1, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea Basic information

• Product Name: 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
• Synonyms: Perflan;Perfmid;Preflan;Prefmid;sha105501;N-[5-[1,1-Dimethyl]-1,3,4-thiadiazol-2-yl]-N,N'-dimethylurea;1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea/TEBUTHIURON;tebuthiuron (ISO) 1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
• CAS: 34014-18-1
• MF: C9H16N4OS
• MW: 228.31
• EINECS: 251-793-7
• Product Categories: Pesticides intermediate;Herbicides;TA - TEPesticides&Metabolites;Urea structure;Alpha sort;Pesticides&Metabolites;Q-ZAlphabetic;Alphabetic
• Mol File: 34014-18-1.mol

1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea Chemical Properties

• Melting point: 161-164°C
• density: 1.2080 (rough estimate)
• refractive index: 1.6390 (estimate)
• storage temp.: 0-6°C
• pka: 13.36±0.46(Predicted)
• form: Solid
• color: White to Light yellow
• Water Solubility: 2.3g/L(temperature not stated)
• λmax: 255nm(lit.)
• Merck: 14,9095
• BRN: 527479
• Exposure limits: LC50 (96-hour) for bluegill sun?sh 112 mg/L, rainbow trout 144 mg/L, gold?shand fathead minnow >160 mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats 644mg/kg (Ashton and Monaco, 1991).
• Major Application: agriculture environmental
• InChI: 1S/C9H16N4OS/c1-9(2,3)6-11-12-8(15-6)13(5)7(14)10-4/h1-5H3,(H,10,14)
• InChIKey: HBPDKDSFLXWOAE-UHFFFAOYSA-N
• SMILES: CNC(=O)N(C)c1nnc(s1)C(C)(C)C
• CAS DataBase Reference: 34014-18-1(CAS DataBase Reference)
• NIST Chemistry Reference: Tebuthiuron(34014-18-1)
• EPA Substance Registry System: Tebuthiuron (34014-18-1)

Safety Information

• Hazard Codes: Xn;N,N,Xn
• Risk Statements: 22-50/53
• Safety Statements: 37-60-61
• RIDADR: UN 3077
• WGK Germany: 3
• RTECS: YS4250000
• HazardClass: 9
• PackingGroup: III
• HS Code: 29349990
• Storage Class: 11 - Combustible Solids
• Hazard Classifications: Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 1
• Hazardous Substances Data: 34014-18-1(Hazardous Substances Data)
• Toxicity: LD50 in mice, rats, rabbits (mg/kg): 579, 644, 286 orally (Todd)

1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea Usage And Synthesis

Uses

Nonselective herbicide used to control herbaceous and woody plants on noncropland.

Uses

Tebuthiuron is an nonselective broad spectrum herbicide used to control weeds, woody and herbaceous plants.

Uses

Herbicide.

Definition

ChEBI: Tebuthiuron is an organonitrogen heterocyclic compound and an organosulfur heterocyclic compound.

General Description

Colorless odorless crystals. Non corrosive. Used as an herbicide.

Reactivity Profile

A urea, thiadiazole derivative.

Agricultural Uses

Herbicide: Tebuthiuron is a broad-spectrum herbicide that isused to control weeds in non-cropland areas, range lands,rights-of-way and industrial sites. In grasslands and sugarcane it controls woody and herbaceous plants and weedssuch as alfalfa, bluegrasses, chickweed, clover, dock,goldenrod and mullein. Not approved for use in EU countries[115]. Registered for use in the U.S.

Trade name

BRULAN®; BRUSH-BULLET®; E-103®;GRASLAN®; HERBEC®; HERBIC®; PERFLAN®;RECLAIM; SHA-105501®; SPIKE®; SPRAKIL®;TEBULAN®; TIUROLAN®

Environmental Fate

Soil. In microbially active soils, tebuthiuron is degraded via demethylation. The averagehalf-life in soil 12–15 months in areas receiving 60 inches of rainfall a year (Humburg etal., 1989).
When tebuthiuron was applied to a rangeland at a rate of 0.84 kg/ha, 38% remainedafter 21 months (Emmerich et al., 1984).
Groundwater . According to the U.S. EPA (1986) tebuthiuron has a high potential toleach to groundwater .
Plant. Degrades in plants via N-demethylation and hydroxylation of the t-butylsidechain (Hartley and Kidd, 1987; Humburg et al., 1989).

1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea Preparation Products And Raw materials

• Raw materials: 2,2-Dimethylpropionic acid hydrazide-->Pivalic acid-->Methylamine-->1,3-Dimethylurea