pterostilbene CAS 537-42-8, 25-99%, China Suppliers and Manufacturers

pterostilbene CAS 537-42-8, 25-99%

Supplier Info

[China Supplier]

Contact Person : Ms. zhang aiqiong

Tel : 086-0551-5154809

Fax : 086-0551-5153311

Product Detail

Alias trans-Pterostilbene; 3,5 - dimethoxy--4 '- hydroxy-stilbene; (E) -3,5 - dimethoxy--4' - hydroxy-styrene; (E) -4 - [2 - (3,

Anhui Minmetals Development Imp/Exp Co.,Ltd.

CERTIFICATE OF ANALYSIS

Analysis	Specification	Result
Appearance	Off white powder	Complied
Melting range	85~88	85~88
Assay(HPLC)	≥99%	99.50%
Mesh size	200mesh	200mesh
Loss on drying	≤0.5%	0.43
Ignition residue	≤0.2%	0.09
Heavy metals	≤10ppm	Conform
Pb	≤2.0ppm	0.9ppm
As	≤2.0ppm	1.0ppm
Cd	≤2.0ppm	0.9ppm
Total plate count	≤1000cfu/g	240cfu/g
Yeast and mold	≤100cfu/g	19cfu/g
E.coli	Negative	Negative
Salmonella	Negative	Negative
Pseudomonas aeruginosa	Negative	Negative
Aflatoxin B1	≤5.0ppm	Complied
Staphylococus	Negative	Negative
Conclusion	Meets in-house specification.
Packing and Storage
Packing	Pack in tin and two plastic-bags inside.
Storage	Store in a well-closed place with constant low temperature and no direct sun light
Shelf life	2 years when properly stored.

pterostilbene CAS 537-42-8, 25-99%