Pyrazosulfuron-ethyl

Modify Date: 2025-08-20 11:23:28

Pyrazosulfuron-ethyl Structure
Pyrazosulfuron-ethyl structure
 Common Name Pyrazosulfuron-ethyl
CAS Number 93697-74-6 Molecular Weight 414.39400
Density 1.44 Boiling Point N/A
Molecular Formula C14H18N6O7S Melting Point 180-182°C
MSDS Chinese USA Flash Point 170 °C

 Use of Pyrazosulfuron-ethyl


Pyrazosulfuron-ethyl, one of the acetolactate synthase inhibiting herbicides in the sulphonylurea family, has been widely used to control weed growth in commercial cereal, soybean, and vegetable fields[1].

 Names

Name pyrazosulfuron-ethyl
Synonym More Synonyms

 Pyrazosulfuron-ethyl Biological Activity

Description Pyrazosulfuron-ethyl, one of the acetolactate synthase inhibiting herbicides in the sulphonylurea family, has been widely used to control weed growth in commercial cereal, soybean, and vegetable fields[1].
Related Catalog
In Vitro Pyrazosulfuron-ethyl inhibited biomass production in Rhodopseudomonas palustris PSB-S, altered cell morphology, suppressed flagella formation, and reduced pigment biosynthesis through significant suppression of carotenoids biosynthesis[2].
References

[1]. Luo XW, et al. Adaptation mechanism and tolerance of Rhodopseudomonas palustris PSB-S under pyrazosulfuron-ethyl stress. BMC Microbiol. 2018;18(1):207. Published 2018 Dec 7.

 Chemical & Physical Properties

Density 1.44
Melting Point 180-182°C
Molecular Formula C14H18N6O7S
Molecular Weight 414.39400
Flash Point 170 °C
Exact Mass 414.09600
PSA 172.01000
LogP 1.45910
Index of Refraction 1.44
InChIKey BGNQYGRXEXDAIQ-UHFFFAOYSA-N
SMILES CCOC(=O)c1cnn(C)c1S(=O)(=O)NC(=O)Nc1nc(OC)cc(OC)n1
Storage condition 0-6°C

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ6393970
CHEMICAL NAME :
1H-Pyrazole-4-carboxylic acid, 5-(((((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)ami no) sulfonyl)-1-methyl-, ethyl ester
CAS REGISTRY NUMBER :
93697-74-6
LAST UPDATED :
199109
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C14-H18-N6-O7-S
MOLECULAR WEIGHT :
414.44

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPIFAN Japan Pesticide Information. (Japan Plant Protection Assoc., 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.1-61, 1969-92. For publisher information, see AGJAEP. Volume(issue)/page/year: (55),17,1989
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>3900 mg/m3
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPIFAN Japan Pesticide Information. (Japan Plant Protection Assoc., 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.1-61, 1969-92. For publisher information, see AGJAEP. Volume(issue)/page/year: (55),17,1989
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPIFAN Japan Pesticide Information. (Japan Plant Protection Assoc., 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.1-61, 1969-92. For publisher information, see AGJAEP. Volume(issue)/page/year: (55),17,1989
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPIFAN Japan Pesticide Information. (Japan Plant Protection Assoc., 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.1-61, 1969-92. For publisher information, see AGJAEP. Volume(issue)/page/year: (55),17,1989
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Bird - quail
DOSE/DURATION :
>2250 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPIFAN Japan Pesticide Information. (Japan Plant Protection Assoc., 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.1-61, 1969-92. For publisher information, see AGJAEP. Volume(issue)/page/year: (55),17,1989

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
RIDADR NONH for all modes of transport
RTECS UQ6393970

 Precursor & DownStream

Precursor  0

DownStream  1

 Synonyms

5-[[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]aminosulfonyl]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester
NC-311
ethyl 5-{[3-(4,6-dimethoxy-2-pyrimidinyl)ureido]sulfonyl}-1-methylpyrazole-4-carboxylate
ethyl 5-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-1-methylpyrazole-4-carboxylate
1-(4-ethoxycarbonyl-1-methylpyrazol-5-yl-sulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)urea
Agreen
ethyl 5-[3-(4,6-dimethoxypyrimidin-2-yl)ureido-sulfonyl]-1-methylpyrazol-4-carboxylate
Ethyl 5-(N-((4,6-dimethoxypyrimidin-2-yl)carbamoyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate
Ethyl 5-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-1-methylpyrazole-4-carboxylate
ethyl 5-[(4,6-dimethoxypyrimidin-2-yl)carbamoylsulfamoyl]-1-methylpyrazole-4-carboxylate
Pyrazosulfuron-ethyl
ethyl 5-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-1H-pyrazole-4-carboxylate
ethyl 5-{[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]sulfamoyl}-1-methyl-1H-pyrazole-4-carboxylate
Sirius
MFCD00274605
1H-Pyrazole-4-carboxylic acid,5-(((((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)amino)sulfonyl)-1-methyl-,ethyl ester
N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-4-ethoxycarbonyl-1-methylpyrazole-5-sulfonamide
ethyl-5-{[(4,6-dimethoxy-2-pyrimidinyl)carbamoyl]sulfamoyl}-1-methyl-1h-pyrazol-4-carboxylat
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