Chemical Formula:?? B1a:C48H72O14(R=C2H3),???(R=CH3)
Molecular Weight: ??????????Bla:872 Blb=858
Description:??????????????????? White or yellowish crystal.
The melting point: ??????????157—160oC. [α](CHCL3)=+55.7 UV:
???????????????????????????????????????λmax= 244+2nm also absorbance at 237,245,254nm
Storage: ?????????????????????? ? Sealed tightly and stored away from light in a cool and dry place.
Packing:???????????????????????? ?25KG/drum
Valid: ???????????????????????? ??? 2 years