2-AMINO-4,6-DIMETHOXPYRIMIDINE

PYRIDINE, also called azabenzene and azine, is a heterocyclic aromatic tertiary amine characterized by a six-membered ring structure composed of five carbon atoms and a nitrogen which replace one carbon-hydrogen unit in the benzene ring (C₅H₅N). The simplest member of the pyridine family is pyridine itself. It is colorless, flammable, toxic liquid with a unpleasant odor, miscible with water and with most organic solvents, boils at 115 C. Its aqueous solution is slightly alkaline. Its conjugate acid is called pyridinium cation, C₅H₅NH⁺, used as a oxidation agent for organic synthesis.. Pyridine is a base with chemical properties similar to tertiary amines. Nitrogen in the ring system has an equatorial lone pair of electrons, that does not participate in the aromatic pi-bond. Its aqueous solution is slightly alkaline. It is incompatible and reactive with strong oxidizers and strong acids, and reacts violently with chlorosulfonic acid, maleic anhydride, oleum, perchromates, b-propiolactone, formamide, chromium trioxide, and sulfuric acid. Liquid pyridine easily evaporates into the air. If it is released to the air, it may take several months to years until it breaks down into other compounds. Usually, pyridine is derived from coal tar or synthesized from other chemicals, mainly acetaldehyde and ammonia. Pyridine compounds are found in nature. For example, nicotine from tobacco, ricinine from castor bean, pyridoxine or vitamin B and P products, alkaloids (such as coniine, piperine and nicotine), and etc. Some pyridine compounds consumed largely are;

Pyridine and its derivatives are very important in industrial field as well as in bio chemistry. Nucleotide consist of either a nitrogenous heterocyclic base (purine or pyrimidine). Three major pyrimidines in living systems are cytosine, thymine, and uracil. Pyrimidine and its derivatives are biologically important components of nucleic acids (DNA, RNA) and coenzymes. Some pyridine system is active in the metabolism in the body. Certain nitrogenous plant products also have pyridine class compounds. They can be the parent compound of many drugs, including the barbiturates. Pyridine and its derivatives are used as solvents and starting material for the synthesis of target compounds such as insecticides, herbicides, medicines, vitamins, food flavorings, feed additives, dyes, rubber chemicals, explosives, disinfectants, and adhesives. Pyridine is also used as a denaturant for antifreeze mixtures, as a dyeing assistant in textiles and in fungicides.

2-AMINO-4,6-DIMETHOXPYRIMIDINE
PRODUCT IDENTIFICATION
CAS NO	36315-01-2
EINECS NO.	252-969-6
FORMULA	C₆H₉N₃O₂
MOL WT.	155.16
H.S. CODE
TOXICITY
SYNONYMS	4,6-Dimethoxy-2-pyrimidinamine; ADMP;
2-氨基-4,6-二甲氧基嘧啶; 4,6-Dimethoxypyrimidin-2-amine;
SMILES
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	off-white to tan crystalline powder
MELTING POINT	94 C
BOILING POINT
SPECIFIC GRAVITY
SOLUBILITY IN WATER	(Soluble in methanol)
AUTOIGNITION
pH
VAPOR DENSITY
NFPA RATINGS
FLASH POINT
STABILITY	Stable under ordinary conditions
GENERAL DESCRIPTION & APPLICATIONS
Pyrimidine is any heterocyclic organic compounds characterized by a ring structure composed of four carbon atoms and two nitrogen atoms at 1 and 3 positions. There are naturally occurring derivatives which are are components of nucleotides and nucleic acids such as cytosine, thymine, and uracil. Pyrimidine can be used as a chemical intermediate to prepare biologically important derivatives. 2-Amino-4,6-dimethoxypyrimidine is used as an intermediate for agrochemicals. It is a building block for various chemical synthesis. Examples of end products from 2-amino-4,6-dimethoxpyrimidine are pyrimidinylsulfonylurea class herbicides such as: Aamidosulfuron (CAS RN: 120923-37-7) Azimsulfuron (CAS RN: 120162-55-2) Cyclosulfamuron (CAS RN: 136849-15-5) Ethoxysulfuron (CAS RN:126801-58-9) Flazasulfuron (CAS RN: 104040-78-0) Halosulfuron (CAS RN: 135397-30-7) Methyl bensulfuron (CAS RN: 83055-99-6) Nicosulfuron (CAS RN: 111991-09-4) Pyrazosulfuron (CAS RN: 98389-04-9) Rimsulfuron (CAS RN: 122931-48-0)
SALES SPECIFICATION
APPEARANCE	off-white to tan crystalline powder
ASSAY	99.0% min
IMPURITY	0.3% max
WATER	0.3% max
TRANSPORTATION
PACKING	25kgs in fiber drum
HAZARD CLASS	Not regulated
UN NO.
OTHER INFORMATION
`Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 26/37/39`
GENERAL DESCRIPTION OF PYRIDINE
PYRIDINE, also called azabenzene and azine, is a heterocyclic aromatic tertiary amine characterized by a six-membered ring structure composed of five carbon atoms and a nitrogen which replace one carbon-hydrogen unit in the benzene ring (C₅H₅N). The simplest member of the pyridine family is pyridine itself. It is colorless, flammable, toxic liquid with a unpleasant odor, miscible with water and with most organic solvents, boils at 115 C. Its aqueous solution is slightly alkaline. Its conjugate acid is called pyridinium cation, C₅H₅NH⁺, used as a oxidation agent for organic synthesis.. Pyridine is a base with chemical properties similar to tertiary amines. Nitrogen in the ring system has an equatorial lone pair of electrons, that does not participate in the aromatic pi-bond. Its aqueous solution is slightly alkaline. It is incompatible and reactive with strong oxidizers and strong acids, and reacts violently with chlorosulfonic acid, maleic anhydride, oleum, perchromates, b-propiolactone, formamide, chromium trioxide, and sulfuric acid. Liquid pyridine easily evaporates into the air. If it is released to the air, it may take several months to years until it breaks down into other compounds. Usually, pyridine is derived from coal tar or synthesized from other chemicals, mainly acetaldehyde and ammonia. Pyridine compounds are found in nature. For example, nicotine from tobacco, ricinine from castor bean, pyridoxine or vitamin B and P products, alkaloids (such as coniine, piperine and nicotine), and etc. Some pyridine compounds consumed largely are; Picoline : Three structural isomers of methyl pyridines (alpha, beta, gamma- positions) Lutidine : Six structural isomers of dimethyl pyridines (2,3-, ,24-, 2,5-, 2,6-, 3,4-, 3,5- positions) Collidine : Three structural isomers of trimethyl pyridines (2,3,5-, 2,3,6-, 2,4,6- positions) Pyrimidine: Pyridine alteration containing nitrogen atoms at positions 1 and 3 Piperidine: Hexahydropyridine (saturated form) Nicotinic acid: pyridine-3-carboxylic acid Pyridine and its derivatives are very important in industrial field as well as in bio chemistry. Nucleotide consist of either a nitrogenous heterocyclic base (purine or pyrimidine). Three major pyrimidines in living systems are cytosine, thymine, and uracil. Pyrimidine and its derivatives are biologically important components of nucleic acids (DNA, RNA) and coenzymes. Some pyridine system is active in the metabolism in the body. Certain nitrogenous plant products also have pyridine class compounds. They can be the parent compound of many drugs, including the barbiturates. Pyridine and its derivatives are used as solvents and starting material for the synthesis of target compounds such as insecticides, herbicides, medicines, vitamins, food flavorings, feed additives, dyes, rubber chemicals, explosives, disinfectants, and adhesives. Pyridine is also used as a denaturant for antifreeze mixtures, as a dyeing assistant in textiles and in fungicides.