Astilbin Neoastilbin Isoastilbin, Neoastilbin, Neoisoastilbin, Taxifolin 3-O-Rhamnoside, Taxifolin 3-Rhamnoside

• Customization: Available
• Certification: ISO, FDA, HACCP, Kosher, Halal
• Assay Method: HPLC
• Model NO.: Astilbin 80%, 90% by HPLC
• State: Powder
• Function: Antioxidant
• Function 1: Anticarsia Gemmatalis
• Function 2: Traditional Chinese Medicine
• Transport Package: 25kg/Drum
• Specification: Astilbin 80%, 90% by HPLC
• Trademark: kingherbs
• Origin: China
• HS Code: 130219
• Production Capacity: 1000kgs

Product Description

Astilbin
IUPAC name: (2R, 3R)-2-(3, 4-dihydroxyphenyl)-5, 7-dihydroxy-3-[(2S, 3R, 4R, 5R, 6S)-3, 4, 5-trihydroxy-6-methyloxan-2-yl]oxy-2, 3-dihydrochromen-4-one
Other name: Isoastilbin, Neoastilbin, Neoisoastilbin, Taxifolin 3-O-rhamnoside, Taxifolin 3-rhamnoside
Specification: Astilbin 80%, 90% by HPLC
Astilbin is a flavanonol, a type of flavonoid. Astilbin is the (2R-trans)-isomer; Neoisoastilbin is the (2S-cis)-isomer and isoastilbin is the (2R-cis)-isomer.
Astilbin can be found in St John's wort (Hypericum perforatum, Clusiaceae, subfamily Hypericoideae, formerly often considered a full family Hypericaceae), in Dimorphandra mollis(Fava d'anta, Fabaceae), in the leaves of Harungana madagascariensis (Hypericaceae), in the rhizome of Astilbe thunbergii, in the root of Astilbe odontophylla(Saxifragaceae), in the rhizone of Smilax glabra(Chinaroot, Smilacaceae) and in the bark of Hymenaea martiana. It can be isolated from Kohki tea processed from Engelhardtia chrysolepis (huang-qui).

Uses
Astilbin can act as an insecticide against Anticarsia gemmatalis and Spodoptera frugiperda. It shows in vitro antibacterial activity and activity on burn wound healing. Astilbin is used in traditional Chinese medicine.

Product Name		Astilbin	Batch Number		ERE-170518
Botanical Source		Engelhardtia roxburghiana Wall.	Batch Quantity		400kgs
Plant Part Used		Leaves, 100% Natural	Country of Origin		China
Type of Products		Standard Extract	Active Ingredient Markers		Astilbin
Analysis Items		Specifications	Results		Methods used
Identification		Positive	Conforms		TLC
Appearance		Fine Light Yellow Powder	Conforms		Visual test
Odor & Taste		Characteristic	Conforms		Organoleptic test
Bulk Density		40-55g/100ml	Conforms		ASTM D1895B
Particle Size		95% through 80 Mesh	Conforms		AOAC 973.03
Solubility		Soluble in Boiling water	Conforms		Visual
Assay		NLT 80% Astilbin	80.16%		HPLC
Loss on Drying		NMT 5.0%	3.24%		5g /105ºC /2hrs
Ash Content		NMT 5.0%	2.15%		2g /525ºC /3hrs
Extract Solvents		Ethanol & Water	Conforms		\
Solvent Residues		NMT 0.05%	Conforms		GC
Heavy Metals		NMT 10ppm	Conforms		Atomic Absorption
Arsenic (As)		NMT 2ppm	Conforms		Atomic Absorption
Lead (Pb)		NMT 2ppm	Conforms		Atomic Absorption
Cadmium (Cd)		NMT 0.5ppm	Conforms		Atomic Absorption
Mercury(Hg)		NMT 0.3ppm	Conforms		Atomic Absorption
666		NMT 0.1ppm	Conforms		USP-GC
DDT		NMT 0.5ppm	Conforms		USP-GC
Acephate		NMT 0.2ppm	Conforms		USP-GC
Parathion-ethyl		NMT 0.2ppm	Conforms		USP-GC
PCNB		NMT 0.1ppm	Conforms		USP-GC
Sterilization Method		High temperature & pressure for a short time of 5~10 seconds
Microbiological Data		Total Plate Count <10,000cfu/g	< 1,000 cfu/g		GB 4789.2
		Total Yeast & Mold <1000cfu/g	< 100 cfu/g		GB 4789.15
		E. Coli to be absent	Absent		GB 4789.3
		Staphylococcus to be absent	Absent		GB 4789.10
		Salmonella to be absent	Absent		GB 4789.4
Packing and Storage		Packed in fiber drum, LDPE bag inside. Net weight: 25kg/drum.
		Keep away from moisture, strong heat and sunlight.
Shelf Life		2 years if sealed and stored in the recommended conditions.