Product Name:Rifamycin sodium salt ( EP5 )

Cas No.:14897-39-3

Molecular Formula:C37H46NaNO12

Molecular Weight:719.75

Appearance: Red crystalline fine powder

Assay: 900 I.U.mg min.

Identification:

1) Maximum absorption is at the wavelength of 223nm, 314nm, 445 nm.  

    Absorption degree ratio at 314nm and 445nm is 1.55~1.80

2) IR absorption spectrum complies with one of standard sample

3) It appears flame reaction of sodium salt  

PH: 6.5-8.0

Absorption coefficient: 190-210

Rifamycin B: 0.5% max.

Rifamycin S: 2.0% max.

Other related substance: 2.0% max.

Heavy metal: 10ppm max.

Moisture: 12.0-17.0%

Bacterial endotoxins: 0.50 I.U./mg max.

Abnormal toxity test (ATT): Complies

Package: 25kg/fibre drum