Appearance (Color) Brown to Dark BrownAppearance (Form) Conforms to Requirements Powder, Crystals, Crystalline Powder and/or ChunksInfrared spectrum Conforms to StructureWavelength 892 - 898 nm In MethanolExtinction Coefficient > 45000
Carbon 67.5 - 72.4 %Nitrogen 8.0 - 8.7 %
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