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Seebio Biotech, Inc. 11-502 Lane 299, Bisheng Rd., Zhangjiang High-Tech park, Shanghai 201204  P.R. China

CERTIFICATE OF QUALITY

Product:

G 418

G 418 Sulfate

Grade:

Cell Culture Tested

Lot:

OG0202A

Code:

140916-1A

CAS NO.:

[108321-42-2]

Mol. Formula:

C₂₀H₄₀O₁₀N₄.2H₂SO₄

Mol. Weight:

692.7

Packing:

250 g / Bottle

Assay(on dry basis)

>720U/mg

728 U/mg

Solubility

Freely soluble in water

Freely soluble in water

Acidity (pH)

5.0~6.0

5.4

Specific optical rotation

+104.0º ~ +121.0º

+112.4º

Water

≤5.0%

4.7%

Absorbance    A570nm

≤0.10

0.09

Absorbance    A280nm

≤0.015

0.013

NH₄⁺

≤1.0%

0.7%

Thin-layer chromatogram

≤1spots

Complies

Appearance

White Crystal powder

White Crystal powder