常州群業(yè)精細化工有限公司

Changzhou Qunye Fine Chemical Co., Ltd.

An enterprise specializing in the research,

Development, production and sales of fine chemical products

PRODUCTS

Qunye Fine Chemical

PRODUCTS

Herbicides and related preparations

Pharmaceutical raw materials

Fungicide

Insecticide

Pesticide Intermediate

Pharmaceutical intermediates

UV absorber

Antioxidants

Plant Growth Regulator

Chlorpheniramine

Product Name	Chlorpheniramine
CAS NO.	101-21-3
Structural formula
Specification	The content is more than 99%, white flake solid
Introduction	Molecular formula: C10H12ClNO2 Molecular weight: 213.7 Physical and chemical properties: melting point 41.4℃; d30L 180: n20D (supercooled) 1.5395. Solubility (25℃); 89 mg/L in water; 100 g/L in oil refining; It is miscible with alcohols, aromatic hydrocarbons and most organic solvents, The purity of the original drug is 98%, the melting point is 38.5-40.0℃, and it is stable below 100℃, It is slowly hydrolyzed in acid and alkali medium, and the appearance of the preparation is fine, gray-yellow powder with a density of 1.2 g/cm3. Toxicity: Acute oral LD505000-7000 mg/kg for rats, fed to rats with 2000 mg/kg feed, no adverse effects for two years, no effect on fish at a concentration of 5 mg/l, acute oral LD50 for preparation rats is greater than 15800 mg/kg, no irritation to the skin; very slight irritation to the eyes, invalid dose: 420 g/kg/day for rats; 500 g/kg/day for rabbits. Mechanism of action: Daike is mainly absorbed by plant roots and shoots to resist cell division, and secondly resists oxidative phosphorylation, RNA synthesis, protein synthesis and photosynthesis, and is used for potato storage to inhibit its germination. Applicable crops and control objects: potatoes germinate during storage. Usage and dosage: 400-800 grams of 2.5% Dike powder per ton of potato field (10-20 grams of active ingredients). You need to wait at least 15 days after the potatoes are harvested. Sprout inhibitors can be applied after the potatoes are harvested and the damage has healed. After the potato healing period, apply it to mature healthy potatoes with dry surfaces before the budding period, and sprinkle the sprout inhibitor directly and evenly on the potatoes (in baskets, boxes, bags or directly stacked on the ground). If If the potatoes are too much (more than 50 kg), they need to be applied in layers when they are stacked. The sprout inhibitor will sublime into gas to inhibit sprouts. Cover the potatoes for 2-4 days after spraying, and then cover the cover. However, it can be removed by dust, and it can be applied with a duster to achieve a more obvious effect. It can be mixed with other antiseptic and fresh-keeping agents, but do not apply to seed potatoes. Store the processed commercial potatoes and seed potatoes separately.

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