500g, Bai Qian, RHIZOMA CYNANCHI STAUNTONII, Tcm Herbal

"Chinese Pharmacopoeia": white before

Name of medicine: white before

Pinyin: Bái Qián

English name: RHIZOMA CYNANCHI STAUNTONII

Alias: goose white before, bamboo leaves before the white

Source This product is the dried rhizome and roots of Cynanchum stauntonii (Decne.) Schrr. Ex Levl. Or Cynanchum glaucescens (Decne.) Hand.-Mazz. Autumn digging, washing, drying.

Traits willow white before: rhizome was elongated cylindrical, branched, slightly curved, long 4 ~ 15cm, diameter 1.5 ~ 4mm. Surface yellowish white or yellow brown, section obvious, section length 1.5 ~ 4.5cm, the top has residual stems. Crisp, hollow section. Department of tufted tufted curved roots, up to 10cm, less than 1mm in diameter, there are many branches were hair whiskers, often plate into a group. Gas slightly, slightly sweet taste.

Daphne genus before the leaves: shorter rhizomes slightly or slightly massive; surface grayish green or grayish yellow, internodes 1 ~ 2cm long. Quality is hard. Root slightly curved, about 1mm in diameter, less branches.

Identification of this product powder 1g, add 70% ethanol 10ml, heating reflux 1 hour, filtration. Take the filtrate 1ml, evaporated, the residue of acetic anhydride 1ml to dissolve, add 1 drop of sulfuric acid, willow white before the red and purple, placed into a dirty green; Daphne leaves white before the brown, no color after placement.

Processing white before: remove impurities, wash, run through, cut, dry. Before the white before: take the whitening before, according to honey burning method (Appendix Ⅱ D) fried to non-stick hand.

Taste: Xin, bitter, slightly warm.

Meridian: go to the lungs.

Indications: blood, phlegm, cough. For the lung obstruction, cough, phlegm, chest full of breath.

Dosage: 3 ~ 9g.

Excerpt: "Chinese Pharmacopoeia"

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★ picture only for reference to the kind of delivery subject. Because the herbs are different from other commodities, each batch of goods fineness is not exactly the same, we can do is choose a good quality of delivery, this please rest assured!

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results may vary per individual, and should be used

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Product basic attributes
Shelf Life:	365 days
Storage:	Dry storage, low temperature refrigeration
Organic or inorganic	organic

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