Certification: | QS, ISO, CE, QS, Fami-QS Ccic, SGS, FDA etc. |
---|---|
Element: | Vitamin B |
Shape: | Powder |
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Product | Vitamin B2 | |
Assay (On dry basis) | 98.0%-102.0% (USP) 97.0%-103.0% (BP) 98.2% |
|
Description | Orange Yellow Crystalline Powder | |
Identification | Positive | |
Acidity of Alkalinity | Check the color of the test solution after adding the respective solutions | |
Lumiflavin | Absorbance of the filtrate at 440nm does not exceed 0.025 (USP); not more intense than BP 0.008 | |
Absorbance | 0.31-0.33 A373nm/A267nm 0.36-0.39 A444nm/A267nm |
|
Particle Size | 100% passes through 60 mesh sieve | |
Specific Rotation | Between -115 and -135 (BP/USP) -125 | |
Loss on Drying | 0.5% | |
Heavy Metals | <10ppm | |
Residue on Ignition | <0.3% (USP) <0.1% (BP) 0.1% |
|
Organic Volatile Impurities | Method IV |
Testing Item | Standard | Result |
Appearance | Yellow to Brownish Yellow Particles |
Conforms |
Flavour | Slightly Smelly, Bitter Taste, Easy to Absorb Moisture | Conforms |
Granulation | 90% less than 280μm | 92.2% |
Content | ≥80% | 82.3% |
Loss on Drying | ≤3.0% | 0.5% |
Ash | ≤5.0% | 1.3% |
Lead (Pb) | ≤5.0 mg/kg | <5.0 mg/kg |
Arsenic(As) | ≤3.0 mg/kg | <3.0 mg/kg |
Salmonella | Negative | Negative by Tests in 25 Grams |