Morphological characteristics
Herbs perennial, 5-100 cm tall; rhizomes longer, transverse; stems erect, metamorphosely subreticulate. Basal leaves clustered, 3-8 cm long, long-stalked, leaf blade margin scalloped or dentate dentate, undivided or pinnately divided to full fissure, with 1-4(-5) opposite lobe, lobes Ovoid to linear-lanceolate, often with larger top lobes, ovate to ovate-lanceolate; stem leaves opposite, lower leaves often 2-3(-6) to pinnatisect, terminal Slits slightly larger or nearly equal to lateral lobes, ovate or broadly ovate, rarely linear-lanceolate, 7(-9) cm long, 5(-6) cm wide, apex acuminate or long acuminate, middle Leaves often with 1-2 pairs of lateral lobes, the largest top lobe, ovate, ovate-lanceolate or nearly rhombic, with crenate, sparsely short hairs, petiole length 1 cm, upper leaves narrow, near no handle . Flowers yellow, composed of terminal corymbose cymes, shortly trichomes or hirsute hairs; peduncles often with 1 or 2 pairs (less 3-4 pairs) of linear lobes, under branches not Split, linear, often as long as or slightly longer than inflorescence; calyx teeth 5, obscure or inconspicuous, wavy, ovate or ovate-triangular to ovate-oblong, 0.1-0.3 mm long; corolla bell-shaped, crowned Tube length 1.8-2 (-2.4) mm, top width 1.5-2 mm, shallow cyst at base, lobes 5, ovate or ovate-elliptic, 0.8-1.8 mm long, 1.6 mm wide; stamens 4 extending , filaments 2 long and 2 short, recent honey cysts are 3-3.6 mm long, others are 1.9-3 mm long, anthers oblong, long 1.2 mm; ovary obovate or oblong, 0.7-0.8 mm long, style slightly Bending, 2.3-2.7 mm long, scutellate or truncate. Achenes oblong or obovate, apically truncated, sparsely inhabited by infertile subchambers, minutely hairy or glabrescent below and above margins of fertile trichomes, winged, dry, membranous, obovate, obovate Oblong or obovate-elliptic, sparsely elliptic, apically obtuse, sometimes very shallowly 3-lobed, or only 1-lobed on one side, 5.5-6.2 mm long, 4.5-5.5 mm wide, often reticular 2 main veins, less 3 main veins. Flowering from July to September, fruiting from August to October.
API Powder (Active Pharmaceutical Ingredient)
Active Pharmaceutical Ingredients refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly.
According to its source,Active Pharmaceutical Ingredients are divided into two categories: synthetic chemical drugs and natural chemical drugs.Chemical synthetic drugs can be divided into inorganic synthetic drugs and organic synthetic drugs. Inorganic synthetic drugs are inorganic compounds (extremely elements), such as aluminum hydroxide and magnesium trisilicate used to treat gastric and duodenal ulcers; organic synthetic drugs are mainly composed of basic organic chemical raw materials, through a series of organic Drugs made by chemical reactions (such as aspirin, chloramphenicol, caffeine, etc.).
Natural chemical drugs can also be divided into biochemical drugs and phytochemical drugs according to their sources.Antibiotics are generally made by microbial fermentation, which belongs to the category of biochemistry.In recent years, many semisynthetic antibiotics are the combination of biosynthesis and chemosynthesis.Among APIs, organic synthetic drugs account for the largest proportion in variety, yield and output value, which is the main pillar of chemical pharmaceutical industry.The quality of API determines the quality of preparation, so its quality standards are very strict. All countries in the world have formulated strict national pharmacopoeia standards and quality control methods for its widely used API
Active Pharmaceutical Ingredient,API powder,minoxidil,monobenzone
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