Rutin is extract from Flos Sophorae lmmaturus. Its standards are as follows:
1. NF11
2. DAB9
3. DAB10

Troxerutin is DAB1999.

Quercetin: 95-102%

Dihydroquercetin: 90-95%

L(+)-Rhamnose: 98%

We can also supply Flos Sophorae lmmaturus. It is also flower-bud of Sophora japonica linn.