2019年3月21日星期四

Triethyl phosphite

Product name:Triethyl phosphite
CAS: 122-52-1
Molecular Formula: C6H15O3P
Molecular Weight: 166.16
Product description:Colorless transparent liquid, has a special odor.Insoluble in water, soluble in ethanol, ethyl ether, benzene, acetone and most organic solvents.With anhydrous ethanol, phosphorus trichloride and liquid ammonia as raw materials in xylene solvent esterification reaction, generate diethyl phosphite, remove the crude ester are washed, ammonium chloride, diethyl phosphite and distillation solvent after, then through distillation to finished products.Used as medicine, pesticide intermediates. Used for production of pain relievers. Consult organism, pesticides kill moth wei, etc.; Also used as plasticizer, stabilizer, additive in lubricating oil and grease.

Trifluralin

Product name:Trifluralin
CAS: 1582-09-8
Molecular Formula: C13H16F3N3O4
Molecular Weight: 335.279
Product description:The fine dry field herbicides. Is mainly used for cotton, soybean, peanut, sunflower, Brussels sprouts, peppers, beans and orchard, etc., can also be used for paddy, wheat and drought control annual gramineous weeds and seed breeding more bore and certain broadleaf weeds, such as weed, grass green bristlegrass, digitaria, 'mai niang, cricket, thousands of gold, Kentucky bluegrass, oats, wild oats, quinoa, amaranth, qiao tongue grass, millet straw, chickweed, kochia scoparia, purslane, etc. For black nightshade, xanthium sibiricum and abutilon perennial root perennial weed control effect is poor or basic is invalid. Strain on weeds is invalid.

Trimecaine Hydrochlortde

Product name:Trimecaine Hydrochlortde
CAS no.:1027-14-1
Molecular formula:C15H24ON2·HCl
Molecular weight:284.82
Appearance:White needle like crystal or crystalline powder
Product description:Enterprise standard.

Trifluoromethanesulfonic anhydride

Product name:Trifluoromethanesulfonic anhydride
CAS: 358-23-6
Molecular Formula: C2F6O5S2
Molecular Weight: 282.1388
Product description:As intermediates widely used in pharmaceutical, protein, sugar, vitamins, Friedel - Crafts benzyl and cyclohexyl reaction catalyst. 2. Plastic industry gathered in polymerization catalysts used in catalytic chemical synthesis as and silicone rubber modification. 3. Electronic chemical industry is used in the production of the electronic conductivity polymer 4. Fuel industry used as proton reaction catalyst. 5. Synthetic weeding and agrochemical industry growth regulator. 6. Used for the sugar industry. 7. Laboratory studies for special reaction

Trimetazidine

Product name:Trimetazidine
CAS: 5011-34-7
Molecular Formula: C14H22N2O3
Molecular Weight: 266.34
Product description:A piperazine derivatives, commodity called great force, chemical name of 1 - (2 and 4 - preparation benzyl) piperazine hydrochloride, two for the angina pectoris medicine. Against epinephrine, norepinephrine, and the effect of vasopressin, can directly relax vascular smooth muscle, reduce vascular resistance, increase the flow of blood to the coronary artery and peripheral circulation and promoting myocardial metabolism and energy production. At the same time reduce the myocardial oxygen consumption and improve myocardial oxygen supply and demand balance. Can increase the tolerance of cardiac glycoside, also can increase the exercise tolerance test of angina patients, significantly reduce angina frequency, reduce the dosage of nitroglycerin. Clinical used in the treatment of coronary artery insufficiency, angina pectoris and old myocardial infarction; For those with severe cardiac insufficiency with digitalis.

Tri-n-butylphosphine

Product name:Tri-n-butylphosphine
CAS: 998-40-3
Molecular Formula: C12H27P
Molecular Weight: 202.3165
Product description:And the most commonly used three different ligand phosphorus reagents, tributyl phosphine is a nucleophilic reagent. It is a relatively weak alkali (pKa in MeNO3 = 8.70; in methanol pKa = 5.60), using solvent without strict oxygen, but need to use inert gas protection, if exposed to the air can produce severe oxidation reaction, generate oxygen tributyl phosphine and dibutyl phosphite phosphonic acid butyl ester. Sulfide and sulphur ester synthesis tributyl phosphine and disulfide and alcohol reaction can generate corresponding sulfide and Bu3PO; And disulfide and carboxyl reaction can get sulphur ester (type 1) [1]. Catalytic addition reaction of carbonyl and alkene Because of tributyl phosphine with nucleophilic attack after double bond can lead to migration, electron cloud addition reaction to occur.

Triisopropanolamine

Product name:Triisopropanolamine
CAS: 122-20-3
Molecular Formula: C9H21NO3
Molecular Weight: 191.3
Product description:White crystalline solid.Can miscibility with water, but soluble in methanol, ethanol and other organic solvents, a slight ammonia odor.Made by propylene oxide and ammonia reaction, is the production of isopropyl alcohol amine products.Used as pharmaceutical raw materials, photographic developer solvent. Paraffin oil solvent in synthetic fiber industry. Because three isopropanolamine and long chain fatty acids of salt has good color stability, therefore particularly suitable for cosmetics emulsifier.