CAS   Number

83-88-5

Molecular   Formula

C₁₇H₂₀N₄O₆

Molecular   Weight

376.37

Molecular Structure

Package

25kg/drum

Storage

Store in a cool, dry   place, away from direct heat and light.

Appearance

Orange yellow crystalline powder

Identification

Positive

Acidity or 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 BY6(EP/BP)

Absorbance

0.31-0.33   A373nm/A267nm

0.36-0.39   A444nm/A267nm      

by Spectrophotometric analysis

Particla Size

95% passes through 80 mesh sieve

Specific Rotation

between -115°and -135°(EP/BP/USP)

Loss   on Drying

≤1.5%

Heavy   Metals

＜10ppm

Residue on Ignition/ Sulphated Ash

≤0.3%(USP)

≤0.1%(EP/BP)

Organic   Volatile Impurities

Method IV ﹤467﹥(USP)

Assay(ondried   basis)

98.0%-102.0%(USP)

97.0%-103.0%(EP/BP)

Standad

EP5/BP2008/USP39