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Name: paracetamol CAS No.: 103-90-2 Appearance: Colorless crystalline powder Molecular formula: C8H9NO2 Molecular Weight: 151.163 Melting point:168°C-172℃ PACKAGE:25KGS/BAG
Name:Vitamin B1, Thiamine hydrochloride, Vitamin HCL Appearance: white or faintly yellow, crystalline powder CAS No.:50-81-7 Standard:BP2018/EP9.2 Molecular formula: C12H17ClN4OS·HCl
Name: Paracetamol CAS No.: 103-90-2 Appearance: White crystal powder Molecular formula: C8H9NO2 Molecular Weight: 151.1649 Density: 1.293 g/cm3 Melting point: 168-172℃ Water solubility: 14 g/L (20℃) Water solubility: 14 g/L (20 ºC)
Name: Vitamin C, L-Ascorbic acid Specfication: 35% feed grade CAS No.: 50-81-7 Molecular formula: C6H8O6 Appearance: A almost white or light yellow powder Usage: Animal Feed Additive
Name: Sodium Benzoate CAS No.: 532-32-1 EINECS No：208-534-8 Appearance：White granules or crystalline powder Molecular formula: C7H5NaO2 Molecular Weight: 144.1032 Density: 1.44 g/cm³ Melting point: 300℃ Boiling point: 249.3°C at 760 mmHg Flash point: 111.4°C Water solubility: soluble Vapor Pressure: 0.0122mmHg at 25°C
Anhui Sinotech company strictly select GMP products, support customer registration , and provide professional services to chemical customers in the global market.Purchase Sodium Benzoate Ball/Granular CAS NO.:532-32-1,inquiry Anhui Sinotech . Name: Sodium Benzoate Ball/Granular CAS No.: 532-32-1 Molecular formula: C7H5NaO2 Molecular Weight: 144.1032 Melting point: >300°C Boiling point: 249.3°C at 760 mmHg Density：1,44 g/cm3 Molecular structure: Description: Sodium benzoate balls/granules CAS NO.: 532-32-1, is an organic substance. It is white particles. Odorless or slightly benzoin smell. It has a slightly sweet and astringent taste. It is stable in the air, easily soluble in water, and soluble in ethanol, glycerol and methanol. After entering the body, sodium benzoate undergoes a biotransformation process and is excreted with urine without accumulating in the body. As long as it is within the normal dosage range, it is harmless to t...
Welcome to 135th China Import and Export Fair Dear Sir or Madam, The 135th Canton Fair is scheduled to open on April 15, featuring continuous optimization of exhibition structure, various premi...
Paraquat (trivial name; /ˈpærəkwɒt/) or N,N′-dimethyl-4,4′-bipyridinium dichloride (systematic name) is an organic compound with the chemical formula [(C6H7N)2]Cl2. It is classified as a viologen, a family of redox-active heterocycles of similar structure. Paraquat was manufactured by Chevron. This salt is one of the most widely used herbicides. It is quick-acting and non-selective, killing green plant tissue on contact. It is also toxic to human beings and animals due to its redox activity, which produces superoxide anions. It has been linked to the development of Parkinson's disease. The name is derived from the para positions of the quaternary nitrogens. Paraquat may be in the form of salt with chloride or other anions; quantities of the substance are sometimes expressed by cation mass alone (paraquat cation, paraquat ion).
Although first synthesized in 1882, paraquat's herbicidal properties were not recognized until 1955.Paraquat was first manufactured and sold by ICI in early 1962, and is today among the most commonly used herbicides.
The European Union approved the use of paraquat in 2004 but Sweden, supported by Denmark, Austria, and Finland, appealed this decision. In 2007, the court annulled the directive authorizing paraquat as an active plant protection substance stating that the 2004 decision was wrong in finding that there were no indications of neurotoxicity associated with paraquat and that the studies about the link between paraquat and Parkinson's disease should have been considered.
Paraquat is classified as non-selective contact herbicide. The key characteristics that distinguish it from other agents used in plant protection products are:
It kills a wide range of annual grasses and broad-leaved weeds and the tips of established perennial weeds.
It is very fast-acting.
It is rain-fast within minutes of application.
It is partially inactivated upon contact with soil.
These properties led to paraquat being used in the development of no-till farming. Current research into no-till farming using mulching techniques as a substitute for herbicide application are producing good results
In the United States, paraquat is available primarily as a solution in various strengths. It is classified as "restricted use", which means that it can be used by licensed applicators only. In the European Union, paraquat has been forbidden since 2007.A small group of countries, including India and Guatemala and supported by manufacturers, have blocked the listing of paraquat as a hazardous chemical for the purposes of the Rotterdam Convention.
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