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Fenaminosulf

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Fenaminosulf Basic information

Product Name:
Fenaminosulf
Synonyms:
  • Sodium N-(4-dimethylaminophenyl)iminosulfamate
  • 4-(DIMETHYLAMINO)PHENYL]DIAZENESULFONIC ACIDODIUM
  • 2-[4-(Dimethylamino)phenyl]diazenesulfonic acid sodium
  • B-22555
  • 4-Dimethylaminophenyldiazosulfonic Acid Sodium Salt Fenaminosulf Sodium 4-Dimethylaminobenzenediazosulfonate Sodium 4-Dimethylaminophenyldiazosulfonate
  • p-Diazodimethylaniline sodium sulfonate
  • Sodium-p-dimethylaminobenzenediazosulphonate
  • SODIUM 4-DIMETHYLAMINOBENZENEDIAZOSULFONATE
CAS:
140-56-7
MF:
C8H10N3NaO3S
MW:
251.24
EINECS:
205-419-4
Product Categories:
  • Azo/Diazo Compounds
  • Building Blocks
  • FUNGICIDE
  • Chemical Synthesis
  • Nitrogen Compounds
  • Organic Building Blocks
Mol File:
140-56-7.mol
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Fenaminosulf Chemical Properties

storage temp. 
−20°C
form 
neat
BRN 
4170376
CAS DataBase Reference
140-56-7(CAS DataBase Reference)
IARC
3 (Vol. 8, Sup 7) 1987
EPA Substance Registry System
Fenaminosulf (140-56-7)
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Safety Information

Hazard Codes 
T
Risk Statements 
21-25-52/53
Safety Statements 
36/37-45-61
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
RTECS 
CZ1750000
HazardClass 
6.1(b)
PackingGroup 
III
HS Code 
29270000
Hazardous Substances Data
140-56-7(Hazardous Substances Data)

MSDS

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Fenaminosulf Usage And Synthesis

Description

Introduced in 1955, fenaminosulf (1; Lesan; Dexon) was one of the first selective, systemic fungicides. It is active against Phycomycetes such as Pythium, Phytophthora, and Aphanomyces but has little or no effect on higher fungi belonging to the Ascomycetes or Basidiomycetes. Fenaminosulf has a relatively high water solubility (20,000 mgL-1), a feature often associated with fungicides that specifically inhibit Oomycetes (3). Another important physicochemical property is photolytic instability, one of the reasons that fenaminosulf was developed as a seed dressing and soil fungicide (4).
As a consequence of acute toxicity , limited spectrum, and photo-instability, the use of fenaminosulf decreased (4), and it is now listed in The Pesticide Manual (5) among products that have been superseded. Although no longer used, it is included here for completeness, being the only example of a commercial fungicide that acts on complex I.
During its period of use, fenaminosulf, as wettable powder (WP), dust, or granular formulations, was employed as a seed dressing and soil-applied fungicide to control damping off and foot/root rots. Fenaminosulf-based products were used on a range of plants including vegetables, field crops, ornamentals, and turf.

Uses

Used in biological and pharmacological studies including:• ;Cloning and characterization of GABA transporter1• ;Activity of anti-RSV carbonucleosides2• ;Inhibition by fungicides of urea hydrolysis and nitrification of urea nitrogen in soil3

General Description

Yellow-brown crystals or brown powder.

Air & Water Reactions

Dust may form an explosive mixture in air. Water soluble.

Reactivity Profile

Aqueous solutions are sensitive to exposure to light.

Fire Hazard

Flash point data are not available for Fenaminosulf. Fenaminosulf is probably combustible.

Safety Profile

Poison by ingestion, intravenous, and intraperitoneal routes. Experimental teratogenic effects. Human mutation data reported. Questionable carcinogen, A fungicide. When heated to decomposition it emits very toxic fumes of NOx, Na2O, and SOx

Fenaminosulf Preparation Products And Raw materials

Raw materials

FenaminosulfSupplier