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?sh and fathead minnow >160 mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats 644 mg/kg (Ashton and Monaco, 1991).

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

Hazardous Substances Data

34014-18-1(Hazardous Substances Data)

Toxicity

LD50 in mice, rats, rabbits (mg/kg): 579, 644, 286 orally (Todd)

MSDS

• Language:English Provider:1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea

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 noncrop land.

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 is used to control weeds in non-cropland areas, range lands, rights-of-way and industrial sites. In grasslands and sugar cane it controls woody and herbaceous plants and weeds such 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 average half-life in soil 12–15 months in areas receiving 60 inches of rainfall a year (Humburg et al., 1989).
When tebuthiuron was applied to a rangeland at a rate of 0.84 kg/ha, 38% remained after 21 months (Emmerich et al., 1984).
Groundwater . According to the U.S. EPA (1986) tebuthiuron has a high potential to leach to groundwater .
Plant. Degrades in plants via N-demethylation and hydroxylation of the t-butyl sidechain (Hartley and Kidd, 1987; Humburg et al., 1989).

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

• Sulfometuron-methyl
• Methylurea
• 1,3-Dimethylurea
• BENZTHIAZURON
• TEBUTHIURON SOLUTION 100UG/ML IN ACETONITRILE 1ML
• TERT-BUTYL-1,3,4-THIADIAZOL-2-YL)-1,3-DIMETHYLUREA
• TEBUTHIURON SOLUTION 100UG/ML IN T-BUTYLMETHYL ETHER 1ML
• TEBUTHIURON SOLUTION 100UG/ML IN T-BUTYLMETHYL ETHER 5X1ML
• TEBUTHIURON SOLUTION 100UG/ML IN T-BUTYLMETHYL ETHER 5ML
• BUTHIDAZOLE
• 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
• 2-Amino-1,3,4-thiadiazole
• 2-AMINO-5-TERT-BUTYL-1,3,4-THIADIAZOLE
• 2-Amino-5-methyl-1,3,4-thiadiazole
• 2-Amino-5-ethyl-1,3,4-thiadiazole
• 5-isopropyl-1,3,4-thiadiazol-2-amine