| Grade Standard: | Feed Grade, Food Grade, Medicine Grade |
|---|---|
| Efficacy: | Vitamins, Amino Acids and Coenzymes |
| Purity: | 98%Min |
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| Items | Standards | ||
| Appearance | Colorless, viscous and clear liquid | ||
| Identification | Positive reaction | ||
| Assay | 98.0%~102.0% | ||
| Water | Not more than 1.0% | ||
| Specific optical rotation | +29.0° ~+31.5° | ||
| Limit of aminopropanol | Not more than 1.0% | ||
| Residue on ignition | Not more than 0.1% | ||
| Refractive index(20) | 1.495~1.502 |
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