| Customization: | Available |
|---|---|
| Powder: | Yes |
| Customized: | Customized |
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[English name] Fisetin
[English alias] C.I. 75620; C.I. Natural Brown 1; Fisetin; 3,3,4,7-Tetrahydroxyflavone; 2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-4H-chromen-4-one
[Molecular formula] C15H10O6
[Molecular Weight] 286.23
[Molecular structure] (Figure 1)
[CAS No.]528-48-3
[Detection method]High performance liquid chromatography HPLC≥98%
|
Testing terms |
Standards |
Results |
|
Assay |
95.0%~102.0% |
99.9% |
|
PH |
3.5~5.5 |
4.6 |
|
Appearance of solution |
0.5mol/L HCL≤2# 2mol/L NH4 OH≤2# |
1# 1# |
|
Water |
11.5%~14.5% |
13.2% |
|
Related substances |
Impurity (max.)≤1.0% |
0.13% |
|
Specific optical rotation |
+290''~+315'' |
+305° |
|
Sulfated ash |
≤1.0% |
0.1% |
|
N-N-Dimethylannline |
≤20ppm |
Never used in the production |
|
Methylen chloride |
≤600ppm |
296ppm |
|
|
≤320ppm |
155ppm |
|
|
≤3000ppm |
95ppm |
|
Conclusion:complies with EP 6th Standard. |
||
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