2019年3月28日星期四

Thiamethoxam

Product name:Thiamethoxam
CAS: 153719-23-4
Molecular Formula: C8H10ClN5O3S
Molecular Weight: 291.71
Product description:White crystalline powder, technical appearance is yellowish gray to white crystalline powder. Melting point: 139.1 ℃, the vapor pressure: 6.6 x 10 to 9 Pa (25 ℃), solubility: (25 ℃, 4.1 g/L refinement) water, melting temperature 139.1 ℃, vapor pressure, Pa (25 ℃).A new structure of the second generation of neonicotinoid efficient and low toxicity pesticides, the pest has stomach poison, inside the tag and active absorption, used for spraying on the leaf and soil filling root treatment. Its rapidly after applying pesticide, absorption and transmission to each part of the plant, the suction pests such as aphids, planthoppers, leafhoppers, whitefly has good control effect.

Tetraphenylboron sodium

Product name:Tetraphenylboron sodium
CAS: 143-66-8
Molecular Formula: Tetraphenylboron sodium
Molecular Weight: 324.2663
Product description:White crystalline. No smell. Light sensitive. The moisture absorption.Soluble in water, acetone, acetonitrile, DMF, the lower the temperature, the greater the solubility. Insoluble in benzene and carbon tetrachloride. With potassium, rubidium, cesium, silver, mercury salt deposits formed. And organic alkali calcium precipitation solubility.1. Ester exchange law take carbonate polycondensation catalyst. Also used in potassium, sodium, and the determination of chlorinated organic compounds, such as the analysis Jia fertilizer and the potassium in the blood. 2. Used for potassium, sodium, and the determination of several kinds of nitrogenous organic compounds. 3. The analytical reagent, used for potassium, ammonium, rubidium, cesium, mercury, the determination of thallium and nitrogenous organic compounds.

Theophylline

Product name:Theophylline
CAS: 58-55-9
Molecular Formula: C7H8N4O2
Molecular Weight: 180.16
Product description:Theophylline is methyl purine drugs. Has a strong heart, diuresis, expansion of coronary artery, relax bronchial smooth muscle and excitement of the central nervous system, etc. Mainly used in the treatment of bronchial asthma, emphysema, bronchitis, heart, breathing difficulties. (left) in the chemical structure of purine ring on seven N H in for '- the CH3' is caffeine, is one of the ingredients of compound aspirin.

Theophylline

Product name:Theophylline
CAS: 58-55-9
Molecular Formula: C7H8N4O2
Molecular Weight: 180.16
Product description:Theophylline is methyl purine drugs. Has a strong heart, diuresis, expansion of coronary artery, relax bronchial smooth muscle and excitement of the central nervous system, etc. Mainly used in the treatment of bronchial asthma, emphysema, bronchitis, heart, breathing difficulties. (left) in the chemical structure of purine ring on seven N H in for '- the CH3' is caffeine, is one of the ingredients of compound aspirin.

Thebaine

Product name:Thebaine
CAS: 115-37-7
Molecular Formula: C19H21NO3
Molecular Weight:311.37
Product description:In ethanol is flaky crystal; Melting point 193 ℃, polarimetric [alpha] an 218.5 ° (ethanol) or - 229 ° (chloroform); Soluble in benzene, chloroform, pyridine, ethanol, slightly soluble in ether and petroleum ether, almost insoluble in water. It with concentrated sulfuric acid in blood red first, then orange, warm olive green; In concentrated hydrochloric acid in orange red; With an acid to form salt crystals. Its hydrochloride in prismatic, [alpha] 崱 - 164 ° (2 g / 100 g water); Picrate the melting point of 217 ℃.It cramps toxicity than anesthesia effect, is excited to cold-blooded reflection, the dog body reaction and showed similar to morphine in anesthesia.

Thiamazole

Product name:Thiamazole
CAS: 60-56-0
Molecular Formula: C4H6N2S
Molecular Weight: 114.16
Product description:Anti-thyroid drugs were summarized: anti-thyroid drugs inhibit thyroid hormone synthesis, its mechanism of action is inhibition of the thyroid peroxidase, preventing gather in the thyroid iodide oxidation and coupling of tyrosine, prevent thyroxine (T4) and thyroid original three iodine glycine (T3) synthesis. In addition, propylthiouracil outside the suppression of T4 in the tissues to T3. Thiourea anti-thyroid drugs in addition to hinder thyroid hormone synthesis, and mild immunosuppressive effect.

Thiacloprid

Product name:Thiacloprid
CAS: 111988-49-9
Molecular Formula: C10H9ClN4S
Molecular Weight: 252.7233
Product description:Broad spectrum and systemic new neonicotinoid insecticides, has good killing effect on sucking mouthparts pests. ACTS on the nicotinic acid acetylcholine receptors, and the method for organophosphorus, carbamate, strain conventional insecticide resistance of interaction, can be used for resistance management. To cotton, vegetables, potatoes and pome class of important pests on fruit has excellent control effect. In addition, effective aphids and whitefly of various beetles (such as potato beetles, apple like a, rice like armour) and lepidoptera pests (such as the apple tree leaf moth and apple moth) is effective, can be used for the corresponding crops.