Vitamin B2 Riboflavin Powder

Product Specifications

DFI-336053DFI-747386

DFI-336053

Description
CAS No.: 83-88-5
Country of origin: China
Description: Yellow or orange yellow crystalline powder
Formula: C17H20N4O6
Molecular weight: 376.36
Packaging: 25 kg/ drum
Particle size: 95% passes through 80 mesh
Shelf life: 36 months
Storage: Tightly sealed, keep in a dry place
Specifications
Assay: 98 to 102%
Bulk Density: Min: 0.3g/ml
Heavy metals: Max: 10ppm, mg/kg
Identification: Intense yellowish-green fluorescence that disappears upon the addition of mineral acids or alkalis
Lead: Max: 1ppm, mg/kg
Loss on drying: Max: 1.5%
Lumiflavin: Max: 0.025
Residue on ignition: Max: 0.3%
Specific Rotation: -115° ~ -135°
Microbiological
Aerobic Plate Count: Max: 1000cfu/g
Escherichia Coli: Negative
Yeasts & Moulds: Max: 100cfu/g
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Published Date: 2022-08-02 16:03:21
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DFI-747386

Description
Country of origin: China
Description: Yellow or orange yellow crystalline powder
Packaging: 25kgs net fibre drums
Particle size: 95% pass through 80 mesh sieve
Shelf life: 36 months
Storage: Store in tight, light- resistant containers
Specifications
Absorbance: 0.36 to 0.39
Absorbance: 0.31 to 0.33
Acidity or Alkalinity: Check the colour of the test solution after adding the respective solutions
Arsenic: Max: 1ppm, mg/kg
Assay: 98 to 102%
Assay: 97 to 103%
Cadmium: Max: 1ppm, mg/kg
Heavy metals: Max: 10ppm, mg/kg
Identification: Positive
Lead: Max: 3ppm, mg/kg
Loss on drying: Max: 1.5%
Lumiflavin: Absorbance of the filtrate at 440nm does not exceed 0.025(USP); not more intense than Reference sol.(C) 0.025% (EP/BP)
Mercury: Max: 0.1ppm, mg/kg
Organic Volatile Impurities: Method IV <467>
Residue on ignition: Max: 0.1%
Residue on ignition: Max: 0.3%
Solubility: Very soluble in water, practically insoluble in ethanol (96%)
Specific Rotation: Between -115º and -135º
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Published Date: 2022-09-08 12:10:48
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The last date for deliveries will be Thursday 21st December 2023 with deliveries re-commencing Wednesday 3rd January 2024

Please place orders for pre-Christmas delivery no later than Thursday 14th December 2023