CAS No. 8025-81-8

Appearance	A white or slightly yellowish powder
Identification
A. UV Spectrum	The specific absorbance at the maximum (232nm) is about 340.
B. TLC	Corresponds to reference solution.
C. Color Reaction	Brown colour.
pH	8.5-10.5
Specific optical rotation	-80°- -85°(dried substance)
Composition (HPLC)
SpiramycinⅠ	≥ 80.0 %
SpiramycinⅡ	≤ 5.0 %
SpiramycinⅢ	≤ 10.0 %
Total Spiramycins	≥ 90.0 %
Related substances (HPLC)	≤ 2.0 %
Heavy metals	≤ 20ppm
Loss on drying	≤ 3.5 %
Sulphated ash	≤ 0.1 %
Assay (wet substance)	No limits (IU/mg)
Assay (dried substance)	≥ 4100 IU/mg
Standard	EP VII

Molecular Formula: C134H228N6O44
Molecular Weight: 2627.25792
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29419090

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