| Identification | More | [Name]
1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea | [CAS]
34014-18-1 | [Synonyms]
1-(5-TERT-BUTYL-1,3,4-THIADIAZOL-2-YL)-1,3-DIMETHYLTHIOUREA
1-(5-TERT-BUTYL-1,3,4-THIADIAZOL-2-YL)-1,3-DIMETHYLUREA
BUSHWACKER
EL-103
N-[5-(1,1-DIMETHYLETHYL)-1,3,4-THIADIAZOL-2-YL]-N,N'-DIMETHYLUREA
SPIKE
SPIKE(R)
TEBUSAN
TEBUTHIURON
1-(5-(t-butyl)-1,3,4-thiadiazol-2-yl)-1,3-dimethyl-ure
1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-3-dimethylharnstoff
Brulan
brushbullet
caswellno.366aa
E-103
EI-103
Graslan
graslan250brushbullets
Graslan40P
n-(5-(1,1-dimethylaethyl)-1,3,4-thiadiazol-2-yl)-n,n’-dimethylharnstoff | [EINECS(EC#)]
251-793-7 | [Molecular Formula]
C9H16N4OS | [MDL Number]
MFCD00078732 | [Molecular Weight]
228.31 | [MOL File]
34014-18-1.mol |
| Chemical Properties | Back Directory | [Melting point ]
161-164°C | [density ]
1.2080 (rough estimate) | [refractive index ]
1.6390 (estimate) | [storage temp. ]
0-6°C | [form ]
Solid | [pka]
13.36±0.46(Predicted) | [color ]
White to Light yellow | [Water Solubility ]
2.3g/L(temperature not stated) | [λmax]
255nm(lit.) | [Merck ]
13,9178 | [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]
34014-18-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn;N,N,Xn | [Risk Statements ]
R22:Harmful if swallowed.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S37:Wear suitable gloves .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [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) |
| Hazard Information | Back Directory | [General Description]
Colorless odorless crystals. Non corrosive. Used as an herbicide. | [Reactivity Profile]
A urea, thiadiazole derivative. | [Uses]
Herbicide. | [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. | [Definition]
ChEBI: Tebuthiuron is an organonitrogen heterocyclic compound and an organosulfur heterocyclic compound. | [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). |
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