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Polyadenylic Acid (5') Potassium Salt

CAS No.: 26763-19-9
Polyadenylic Acid (5') Potassium Salt is used for testing for COVID-19.
INQUIRY
Description
Items Specification
Description White or almost white powder,Freely soluble in water,insoluble in ethanol or inether
Identification Have the largest absorption at λ=257±2nm wavelength
Have the minmum absorption at λ=229±2nm  A250/A260=0.82~0.92
A280/A260=0.25~0.35
PH 6.0-8.0
Clarity of solution Clarify;Pass test
Loss on drying ≤10.0%
Sedimentation coefficient ≥4S
Content (dry basis) ≥85.0%

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