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2074-50-2 Structure

2074-50-2 Structure

Paraquat methosulfate


1,1-dimethyl-4,4-dipyridinium bis(methylsulfate)
Paraquat bis(methyl sulfate).
1,1'-Dimethyl-4,4'-bipyridinium dimethosulfate
Dimethyl-4,4'-bipyridinium bis(methyl sulfate)
Paraquat methosulfate
1',1'-Dimethyl-4,4'-dipyridiniumbisi(methyl sulfate)
1-Methyl-4-(1-methylpyridin-1-ium-4-yl)pyridin-1-ium methyl sulfate
4,4'-Bipyridinium, 1,1'-dimethyl-, bis(methyl sulfate)
Gramoxone methyl sulfate

[Molecular Formula]

[Molecular Weight]

[MOL File]

Chemical PropertiesBack Directory

Paraquat is a yellow solid with a faint, ammonia-like odor.
[Contact allergens]

Paraquat is a quaternary ammonium compound with herbicide properties, as diquat. It is contained in Cekuquat® or Dipril®. It can cause contact and phototoxic contact dermatitis, acne, and leukoderma mainly in agricultural workers.
[CAS DataBase Reference]

2074-50-2(CAS DataBase Reference)
Hazard InformationBack Directory

Herbicide. Dichloride as biological oxidation-reduction indicator.
[General Description]

White crystalline solid or yellow solid. Used as a contact herbicide and desiccant.
[Reactivity Profile]

When PARAQUAT METHOSULFATE is heated to decomposition, PARAQUAT METHOSULFATE emits very toxic fumes of sulfur oxides and nitrogen oxides. Avoid strong oxidizers. [EPA, 1998].
[Health Hazard]

PARAQUAT METHOSULFATE can cause death by shock and/or pulmonary damage. The fatal dose is estimated to be 6 grams of paraquat ion. Exposure may cause renal tubular damage and liver dysfunction.
[Potential Exposure]

Those engaged in manufacture, formulation and application of this herbicide. Classified for restricted use: limited to use by a certified applicator, or those under applicator’s direct supervision.
[Fire Hazard]

When heated to decomposition, PARAQUAT METHOSULFATE emits very toxic fumes of sulfur oxides and nitrogen oxides. Avoid strong oxidizers.
[First aid]

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water, or bentonite clay in water, or activated charcoal in water; and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 2448 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy. Obtain authorization and/or further instructions from the local hospital for performance of other invasive procedures. Rush to a health care facility.

UN2781 Bipyridilium pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides (hydrolysis), alkylarylsulfonate wetting agents. Corrosive to metals. Decomposes in presence of ultraviolet (UV) light. Decomposes in heat (see physical properties, above) and in the presence of UV light, producing nitrogen oxides, hydrogen chloride.
[Waste Disposal]

Paraquat is rapidly inactivated in soil. It is also inactivated by anionic surfactants. Therefore an effective and environmentally safe disposal method would be to mix the product with ordinary household detergent and bury the mixture in clay soil. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
Safety DataBack Directory

[HazardClass ]

[PackingGroup ]


LD50 orally in male rats: 100 mg/kg (Kimbrough, Gaines)
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

1,1'-Dimethyl-4,4'-bipyridinium dimethosulfate(2074-50-2).msds
2074-50-2 suppliers list
Company Name: Henan tianfu chemical co. LTD
Tel: 0371-55170695
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Fax: +86-0592-6210733
Company Name: Hangzhou J&H Chemical Co., Ltd.  
Company Name: Wuhan FengyaoTonghui Chemical Products Co., Ltd.  
Tel:027-87466205 15377573527
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