-
Name
1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
- EINECS 251-793-7
- CAS No. 34014-18-1
- Article Data11
- CAS DataBase
- Density 1.186 g/cm3
- Solubility 2.3g/L(temperature not stated)
- Melting Point 161-164°C
- Formula C9H16N4OS
- Boiling Point
- Molecular Weight 228.318
- Flash Point
- Transport Information UN 3077
- Appearance Colorless odorless crystals
- Safety 37-60-61
- Risk Codes 22-50/53
-
Molecular Structure
-
Hazard Symbols
Xn; 
N
- Synonyms Urea,1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethyl- (8CI);1,3-Dimethyl-1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)urea;EL 103;Graslan;Graslan 250 Brush Bullets;Perflan;SPIKE;Spike 80W;1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea;Tebutiuron;
- PSA 86.36000
- LogP 2.00210
Tebuthiuron Chemical Properties
Chemical Name: 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
IUPAC NAME: 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
CAS No.: 34014-18-1
EINECS: 251-793-7
Molecular Formula: C9H16N4OS
Molecular Weight: 228.31 g/mol
Melting Point: 161-164°C
Polar Surface Area: 77.57 Å2
Index of Refraction: 1.554
Molar Refractivity: 61.77 cm3
Molar Volume: 192.4 cm3
Surface Tension: 46.1 dyne/cm
Density: 1.186 g/cm3
Following is the structure of 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea (CAS NO.34014-18-1):
Product Categories about 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea (CAS NO.34014-18-1) are Alphabetic ; Herbicides ; TA - TEPesticides&Metabolites ; Urea structure ; Alpha sort ; Pesticides&Metabolites ; Q-ZAlphabetic
The chemical synonymous of 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea (34014-18-1) are Spike ; Spike(R) ; Tebusan ; Tebuthiuron ; N-[5-(1,1-Dimethylethyl)-1,3,4-thiadiazol-2-Yl]-N,N'-Dimethylurea ; 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
Synonyms of 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea (CAS NO.34014-18-1): Tebuthiuron ; Urea, 1-(5-(t-butyl)-1,3,4-thiadiazol-2-yl)-1,3-dimethyl- ; Urea, N-(5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl)-N,N'-dimethyl- ; N-(5-(1,1-Dimethylethyl)-1,3,4-thiadiazol-2-yl)-N,N'-dimethylurea
Tebuthiuron Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| cat | LD50 | oral | > 200mg/kg (200mg/kg) | Pesticide Manual. Vol. 9, Pg. 787, 1991. | |
| chicken | LD50 | oral | > 500mg/kg (500mg/kg) | Pesticide Manual. Vol. 9, Pg. 787, 1991. | |
| dog | LD50 | oral | > 500mg/kg (500mg/kg) | Pesticide Manual. Vol. 9, Pg. 787, 1991. | |
| duck | LD50 | oral | > 500mg/kg (500mg/kg) | Pesticide Manual. Vol. 9, Pg. 787, 1991. | |
| mouse | LD50 | intraperitoneal | 505mg/kg (505mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S35, 1992. |
| mouse | LD50 | oral | 579mg/kg (579mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) BEHAVIORAL: ATAXIA | Food and Cosmetics Toxicology. Vol. 12, Pg. 461, 1974. |
| mouse | LD50 | subcutaneous | 545mg/kg (545mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S35, 1992. |
| quail | LD50 | oral | > 500mg/kg (500mg/kg) | Pesticide Manual. Vol. 9, Pg. 787, 1991. | |
| rabbit | LD50 | oral | 286mg/kg (286mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) BEHAVIORAL: ATAXIA | Food and Cosmetics Toxicology. Vol. 12, Pg. 461, 1974. |
| rat | LC50 | inhalation | > 3696mg/m3 (3696mg/m3) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S35, 1992. |
| rat | LD50 | intraperitoneal | 480mg/kg (480mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S35, 1992. |
| rat | LD50 | oral | 644mg/kg (644mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) BEHAVIORAL: ATAXIA | Food and Cosmetics Toxicology. Vol. 12, Pg. 461, 1974. |
| rat | LD50 | skin | > 5gm/kg (5000mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S35, 1992. |
| rat | LD50 | subcutaneous | 500mg/kg (500mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S35, 1992 |
Tebuthiuron Safety Profile
Hazard Codes: 
N,
Xn
Risk Statements: 22-50/53
R22: Harmful if swallowed.
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 37-60-61
S37: Wear suitable gloves.
S60: This material and its container must be disposed of as hazardous waste.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3077
RTECS: YS4250000
Hazardous Substances Data: 34014-18-1(Hazardous Substances Data)
Poison by ingestion. Moderately toxic by intraperitoneal and subcutaneous routes. When heated to decomposition it emits very toxic fumes of SOx and NOx.
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