Curcumin

Name: Curcumin
Availability: curcumin-322226.html

Category:Active Pharmaceutical Ingredients
Product Name:Curcumin
CAS No.:458-37-7
Standard:In-house Standards
Price(USD):Negotiable
Company:Yantai Zhaoyi Biochnology Co., Ltd.

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Basic Info

Grade: pharmaceutical grade

Factory Location: Shandong

Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Eastern Europe,Australasia,Asia,Middle East,Africa
Sample Provided: no

The main sources of curcumin are tuber root of turmeric, rhizome of turmeric, rhizome of zedoary and rhizome of acorus calamus. Curcumin is orange yellow crystalline powder, taste slightly bitter, insoluble in water and ether, soluble in ethanol, propylene glycol, soluble in glacial acetic acid and alkali solution, red brown in alkaline, neutral, acidic yellow. It was determined by OT-42 method. Melting range 179 ~ 182℃. Curcumin has strong stability to reducing agent and strong coloring ability. Once it is colored, it is not easy to fade, but it is sensitive to light, heat and iron ions, and has poor light resistance, heat resistance and iron ion resistance. Because there are two hydroxyl groups at both ends of curcumin molecule, electron cloud deviation conjugation effect occurs under alkaline condition, so when PH is greater than 8, curcumin will change from yellow to red. Modern chemistry uses this property as an acid-base indicator.

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