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Asulam

Product Name:
Asulam
CAS No.
3337-71-1
Chemical Name:
Asulam
CBNumber:
CB3244887
Molecular Formula:
C8H10N2O4S
Formula Weight:
230.24
MOL File:
3337-71-1.mol
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Asulam Property

Melting point:
142-144°C (dec.)
Density 
1.4655 (rough estimate)
refractive index 
1.5690 (estimate)
storage temp. 
0-6°C
form 
neat
pka
4.82(at 25℃)
Water Solubility 
5g/L(room temperature)
Merck 
13,862
BRN 
2697523
NIST Chemistry Reference
Asulam(3337-71-1)
EPA Substance Registry System
Asulam (3337-71-1)
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Safety

Hazard Codes 
Xn
Risk Statements 
22
WGK Germany 
3
RTECS 
FD1190000
HS Code 
29350090
Toxicity
LD50 in rats, mice, dogs, rabbits (mg/kg): >5000, >5000, >5000, >2000 orally; in rats (mg/kg): >1200 dermally (Brockelsby)
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N-Bromosuccinimide Price More Price(1)

Sigma-Aldrich Gold
Product number:
45329
Product name :
Asulam
Purity:
PESTANAL
Packaging:
250mg
Price:
$22.7
Updated:
2019/12/02
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Asulam Chemical Properties,Usage,Production

Description

Asulam is a sulfonamide and can be formulated as a sodium salt. It is very water soluble and is a very systemic herbicide following foliar and root uptake, owing to its physicochemical properties (Table 1). The Log P (Kow) of 1.01 and pKa of 4.82 are optimal for phloem mobility in the plant (4). These properties contribute to the herbicidal effectiveness against perennial weeds where translocation to underground meristematic organs is essential for effective control.

Chemical Properties

Light Brown Solid

Uses

Carbamate herbicide; folic acid biosynthesis inhibitor.

Uses

Herbicide.

Uses

Systemic, pre- and postemergence herbicide used to control several perennial grasses and certain broad-leaved weeds such as brackenfern, crabgrass, itchgrass, paragrass, tansy ragwort, and wild mustard, in alfalfa, uncropped land, certain ornamentals and turf.

Definition

ChEBI: A carbamate ester that is methyl carbamate substituted by a (4-aminophenyl)sulfonyl group at the nitrogen atom.

Health Hazard

Low order of toxicity; no adverse effect onskin reported; ingestion of large dose couldproduce cholinergic effects.
LD50 oral (rat): 2000 mg/kg.

Pharmacology

Asulam-induced growth inhibition of carrot cell cultures was reversed by 4-aminobenzoic acid (8), and depletion of folate derivatives in treated plants (7) provides further evidence that the synthesis of folic acid is the primary target of asulam. Furthermore, asulam is structurally related to sulfonilamide and to sulfonamide antimicrobial drugs, which are competitive inhibitors of 7,8-dihydropteroate synthase (DHPS) (5,9).

Environmental Fate

Soil. It is not persistent in soils since its half-life is approximately 6–14 days (Hartley and Kidd, 1987). The short persistence time is affected by soil temperature and moisture content. The half-life of asulam in a heavy clay soil having a moisture content of 34% and maintained at 20°C was 7 days (Smith and Walker, 1977). In soil, sulfanilamide was reported as a product of hydrolysis. In non-sterile soils, this compound further degraded to unidentifiable products (Smith, 1988) which may include substituted anilines (Bartha, 1971).
Photolytic. The reported photolytic half-lives for asulam in water at pH 3 and 9 were 2.5 and 9 days, respectively (Humburg et al., 1989)
Chemical/Physical. Forms water-soluble salts (Hartley and Kidd, 1987). When heated to 75°C, asulam decomposed to sulfanilic acid, carbamic acid and sulfanilamide. At 90°C, 4-nitro- and 4-nitrosobenzene sulfonic acids were released (Rajagopal et a

Asulam Preparation Products And Raw materials Raw materials

Raw materials

Preparation Products

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Asulam Suppliers

Global(124)Suppliers
J & K SCIENTIFIC LTD.
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JinYan Chemicals(ShangHai) Co.,Ltd.
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Chemsky(shanghai)International Co.,Ltd.
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021-50135380
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32358
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Dalian Meilun Biotech Co., Ltd.
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3337-71-1, AsulamRelated Search:

ASULAM 400 HERBICIDE,asulam sodium,asulam sodium salt methyl [(4-nitrophenyl)sulphonyl]carbamate SALOR-INT L255289-1EA Asulam Sulfuryl chloride 4-Methoxybenzoyl chloride 4-Aminobenzoic acid Bensulfuron methyl 2-Aminobenzenesulfonamide Methylparaben Thiophanate-methyl 3-Aminobenzenesulfonamide Methyl Methyl chloroformate p-Anisidine Methyl bromide Methyl acetate Methyl acrylate
  • mb 9057
  • METHYL SULFANILYLCARBAMATE
  • Methyl [(4-aminophenyl)sulfonyl]carbamate
  • METHYL 4-AMINOPHENYLSULPHONYLCARBAMATE
  • ASILAN
  • ASULAM
  • asulox
  • ASULOX 40
  • ASULOX 40(R)
  • ASULOX F(R)
  • ASULOX(R)
  • methyl4-aminobenzenesulphonylcarbamate
  • methyln-(4-aminobenzenesulfonyl)carbamate
  • n(sup1)-methoxycarbonylsulfanilamide
  • N-1-Methoxycarbonylsulfanilamide
  • plakin
  • sulfanilyl-carbamicacimethylester
  • UPPERCUT
  • Asulon
  • methyl sulphanilylcarbamate
  • ASULAM, 1GM, NEAT
  • Jonnix
  • JONNIX(R)
  • 'LGC' (1602)
  • [(4-Aminophenyl)sulfonyl]carbamic acid methyl ester
  • SANULAM
  • ((4-aminophenyl)sulfonyl)-carbamicacimethylester
  • 4-Amino-benzolsulfonyl-methylcarbamat
  • Asulfox F
  • Asulox f
  • asuloxf
  • Carbamic acid, [(4-aminophenyl)sulfonyl]-, methyl ester
  • Carbamic acid, 4-aminobenzenesulfonyl-, methyl ester
  • Carbamic acid, sulfanilyl-, methyl ester
  • Carbamicacid,[(4-aminophenyl)sulfonyl]-,methylester
  • m And b 9057
  • mandb9057
  • Methyl 4-aminobenzenesulfonylcarbamate
  • Methyl 4-aminobenzenesulphonyl carbamate
  • Methyl N-(4-aminobenzenesulfonyl)carbamate
  • Methyl p-aminobenzenesulfonylcarbamate
  • ASULAM PESTANAL (METHYL 4-AMINO- PHENYLS
  • asulam (bsi,iso,ansi,wssa)
  • methyl n-(4-aminophenylsulfonyl)carbamate
  • METHYL ((4-AMINOPHENYL)SULFONYL)CARBAMATE /ASULAM
  • ASULUM
  • CARBAMICACID,SULPHANILYL-,METHYLESTER
  • sulfanilyl-carbamic acid methyl ester
  • ASULAM STANDARD
  • Argilan
  • Arulam
  • Asilam
  • asulan
  • methyl-4-aminobencensulphonyl carbamater
  • p-(N-Methoxycarbonylsulfamoyl)-aniline
  • N-[(4-AMinophenyl)sulfonyl]carbaMic Acid Methyl Ester
  • Carbamicacid, N-[(4-aminophenyl)sulfonyl]-, methyl ester
  • 3337-71-1