| Identification | More | [Name]
5-Phenylcarbamoylamino-1,2,3-thiadiazole | [CAS]
51707-55-2 | [Synonyms]
1-PHENYL-3-(1,2,3-THIADIAZOL-5-YL)UREA
5-Phenylcarbamoylamino-1,2,3-thiadiazole
DROPP
DROPP(R)
N-PHENYL-N'-(1,2,3-THIADIAZOL-5-YL)UREA
THIDIAZAURON
(n-1,2,3-thiadiazolyl-5)-n’-phenylurea
1-phenyl-3-(1,2,3-thiadiazol-5-yl)-ure
1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea*plantcell
defolit
sn49537
Thidiazauron (1-Phenyl-3-(1,2,3-thiadiazol-5-yl)-harnstoff
N-phenyl-N-1,2,3,-thiadiazol-5-yluree
5-(N-Phenylcarbonylamino)-1,2,3-thiadiazole
N-Phenyl-N'-1,2,3-thiodiazol-5-yl urea
THIDIAZURON PESTANAL (1-PHENYL-3-(1,2,3
THIDIAZURON, 1GM, NEAT
1-PHENYL-3-(1,2,3-THIADIAZOL-5-YL)UREA*P LANT CELL C
TDZ
Thidiazurone | [EINECS(EC#)]
257-356-7 | [Molecular Formula]
C9H8N4OS | [MDL Number]
MFCD00078723 | [Molecular Weight]
220.25 | [MOL File]
51707-55-2.mol |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [RIDADR ]
UN 3077 9 / PGIII | [WGK Germany ]
3
| [RTECS ]
YU1395000
| [HS Code ]
2934999090 | [Safety Profile]
Moderately toxic by
ingestion. Experimental reproductive
effects. When heated to decomposition it
emits toxic fumes of SOx and NOx. | [Hazardous Substances Data]
51707-55-2(Hazardous Substances Data) | [Toxicity]
LC50 (96-hour) for bluegill sun?sh, channel cat?sh and rainbow trout >1,000
mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats >5,000 mg/kg (Hartley and Kidd,
1987), 5,350 mg/kg (RTECS, 1985). |
| Hazard Information | Back Directory | [Chemical Properties]
The pure product is a white odorless and tasteless crystalline solid. m.p.210～212.5°C (decomposition at 217°C), vapor pressure 4×10-9Pa) (25°C). Solubility at 25°C: dimethyl sulfoxide>500g/L, dimethylformamide>500g/L, cyclohexanone 21.5g/L, acetone 8g/L, methanol 4.5g/L, ethyl acetate 0.8 g/L, hexane 6mg/L, insoluble in aliphatic and aromatic hydrocarbons, solubility in water 31mg/L. The partition coefficient is 59 (pH=7.3). Stable below 200°C; stable to water at room temperature, half-life > 24d; half-life in soil < 60d. | [Uses]
Cotton defoliant; plant growth regulator in tissue culture. | [Uses]
Plant growth regulator used to defoliate cotton to facilitate harvesting. | [Uses]
Thidiazuron is a non-purine containing urea derivative with cytokinin activity.
Thidiazuron is used as a cotton defoliant and a plant growth regulator in tissue culture. | [Definition]
ChEBI: Thidiazuron is a member of ureas. | [General Description]
Thidiazuron is a systemic herbicide, widely employed as an effective plant growth regulator and pre-harvest defoliant for crops such as cotton. | [Agricultural Uses]
Herbicide, Defoliant, Plant growth regulator: Used primarily as a cotton defoliant in order to increase
the harvest yield. Not applied to food crops. Not approved
for use in EU countries. Registered for use in the U.S.
U.S. Maximum Allowable Residue Levels for Thidiazuron
and its aniline-containing metabolites in or on the following
food commodities: [40 CFR 180.403(a)]: cattle,
fat 0.4 ppm; cattle, meat 0.4 ppm; cattle, meat byproducts
0.4 ppm; cotton, gin byproducts 24.0 ppm; cotton,
undelinted seed 0.3 ppm; goat, fat 0.4 ppm; goat meat
0.4 ppm; goat, meat byproducts 0.4 ppm; hog, fat 0.4 ppm;
hog, meat 0.4 ppm; hog, meat byproducts 0.4 ppm; horse,
fat 0.4 ppm; horse, meat 0.4 ppm; horse, meat byproducts
0.4 ppm; milk 0.05 ppm; sheep, fat 0.4 ppm; sheep, meat
0.4 ppm; sheep, meat byproducts 0.4 ppm. | [Agricultural Uses]
Thidiazuron is substituted urea that is used to defoliate
cotton plants. Thidiazuron, which has cytokinin activity,
is one of the many harvesting aids needed in agriculture. | [Trade name]
DAZE®; DEFOLIT®; DROPP®;
GINSTAR EC® (thidiazuron + diuron); LEAFLESS®
Tthidiazuron; SN 49537® | [Environmental Fate]
Soil. The reported half-life in soil is approximately 26–144 days (Hartley and Kidd,
1987).
Photolytic. Rapidly converted to the photoisomer, 1-phenyl-3-(1,2,5-thiadiazol-3-
yl)urea (Worthing and Hance, 1991). When thidiazuron adsorbed by soil was exposed to
UV light (λ <290 nm), 1-phenyl-3-(1,2,5-thiadiazol-3-yl)urea formed as the majo |
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