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China
連絡先担当者 allen
LIQUAN, Binzhou, Shandong
| Product Name: FOLIC ACID | Quantity:***0kgs | Batch No: ITA*******5 | ||
| Producing date: ***5.*1.*5 | Sampling date: ***5.*1.*5 | Send out date: ***3.*1.*5 | ||
| Reference standard: USP/BP | ||||
| Item | Standard | Test Results | ||
| Characteristics | Yellow or orange,orystalline powder,odourless or almost odourless insoluble in water and in most organic solvents ,dissolves in dilute acids and in alkaline solutions | Complies | ||
|
Identification A: Specific rotation B: Ultraviolet absorption C:Thin-layer chromatography |
Specific optical rotation is about **0 It exhibits three maxima at **6,**3,and **3nm The A at **6 nm is about **0, at **3nm is about **5,at **5nm is about **6 The principal spot in the chromatogram Obtained with soiution sample is similar In position ,fluore scence and size to that in the chromatiogram obtain with solution Folic Acid R S |
**0° 2.*0 |
||
| Chromatographic purity | The sum of the area of all peaks is not greater than 2.0% | 0.8% | ||
| (Free amines ) | A2 / A1≤1/6 | 0.*5 | ||
| (Sulphated ash ) | ≤0.2% | 0.*8% | ||
| (Loss on drying) | 5.0%*8.5% | 7.0% | ||
| Organic volatile impurities | Complies | Complies | ||
| (Assay ) |
*7.0%***2% (Calculated with reference to the dried substance ) |
*8.8% | ||
| Conclusion : |
BP /USP |
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