Cantidad: | |
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DY13961
67724-08-7
266-981-4
C157H244N6O50
Spiramycin, compd. with 4,4'-methylenebis[3-hydroxy-2-naphthalenecarboxylic acid]
Index Name | Specifications |
Appearance | A slightly yellowish powder |
identification | Positive reaction |
Related substances | RP17 490%(neospiramycin) 3.0%max RP6 962% 3.0%MAX No other impurities 3.0%min Other impurities included between 2 to 3% |
Loss on drying | 5.0%max |
Heavy metals | 20ppm max |
Sulfated ash | 0.4%max |
Assay | Assay as Embonic acid 27.0 to 33.0% Assay as spriamycin base 67.0 to 73.0% Microbiological assay not less than 2700iu/mg |
Index Name | Specifications |
Appearance | A slightly yellowish powder |
identification | Positive reaction |
Related substances | RP17 490%(neospiramycin) 3.0%max RP6 962% 3.0%MAX No other impurities 3.0%min Other impurities included between 2 to 3% |
Loss on drying | 5.0%max |
Heavy metals | 20ppm max |
Sulfated ash | 0.4%max |
Assay | Assay as Embonic acid 27.0 to 33.0% Assay as spriamycin base 67.0 to 73.0% Microbiological assay not less than 2700iu/mg |
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