Customization: | Available |
---|---|
Certification: | ISO, FDA, HACCP, Halal |
Assay Method: | HPLC, UV |
Still deciding? Get samples of US$ 60/kg
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
TEST ITEM | STANDARD | RESULT |
Appearance | Yellow or greenish-yellow, crystalline powder | Complies (Visual) |
Melting point | 195ºC | Complies(Melting point apparatus) |
Identification | (a)(b)(c) Positive reaction | Complies |
Solubility | ||
- in water | Soluble slightly | Complies |
- in methanol | Soluble freely | Complies |
- in alkaline solutions | Soluble freely | Complies |
- in chloroform | Insloluble | Complies |
Loss on drying | 5.5%---9.0% | Complies |
Residue on ignition | ≤0.5% | Complies |
Quercetin | ≤0.4% | Complies |
Assay | 95%---101.5% | Complies (HPLC/UV) |
HEAVY METAL | STANDARD | RESULT(ICP-MS) |
Lead | ≤3ppm | Complies |
Cadmium | ≤1ppm | Complies |
Mercury | ≤0.1ppm | Complies |
Arsenic | ≤1ppm | Complies |
MICROBIOLOGICAL TEST | STANDARD | RESULT |
Total microbial count | ≤1000cfu/g | Complies |
Yeast & mold | ≤100cfu/g | Complies |
E.Coli | Negative | Negative |
Salmonella | Negative | Negative |