-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Iris flavin
Irisflorentin
【Structural formula】
[Molecular formula and molecular weight] C 20 H 18 O 8 ; 386.
[Source] The dry rhizome of Belamcanda chinensis (L.
【Properties】White crystals
This product is soluble in chloroform
Melting point: 166~167℃
【Purity Check】
TLC
1.
Developing solvent of chloroform - methanol (9:1)
Check under UV light (254nm) before color development, develop color with 10% sulfuric acid ethanol solution, heat at 105°C, check under sunlight
2.
Developing solvent n-hexane - ethyl acetate (8:2)
Check under UV light (254nm) before color development, develop color with 10% sulfuric acid ethanol solution, heat at 105°C, check under sunlight
High performance liquid chromatography
Chromatographic column Agilent C 18 , 5um (4.
The mobile phase methanol - water (50:50), 30 ℃, 1.
Detection 260nm
【Structural identification】266,321
1651, 1581, 1473, 1277, 1128
EI-MS m/z: 386[M] + ,358,343,177,149,134
1 H-NMR(CDCl 3 ) δ: 6.
13 C-NMR (CDCl 3 ) δ: 174.
【Storage】Dry and airtight