Guangzhou Hanpu Pharmaceutical Co.,Ltd.
|
PH: Neutral reaction
4,4′-Dihydroxystilbene and related ethers:not greater than 0.50%.
Mono- and dimethyl ethers: Mono ethers<0.5%
Dimethyl ethers<0.5%
Melting point: about 172 °C.
Loss on drying:≤0.5%
Sulphated ash: ≤0.05%
Assay 97.0%-101.0 |
Send Inquiry
|