“He Yuan Li Ji” was established as a joint venture between He Yuan Bio (stock code: 688238) and Li Ji Bio, with its core business centered on the “Li Ji Bio” and “Life-ilab” reagent brands.

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What are the grade specifications and the method of sterile filtration for DMSO?

Publication date：2026-10-29
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The DMSO grade used for cryopreservation must be tissue‑culture grade (e.g., Sigma D2650), which is inherently sterile. After the first opening, it should be promptly aliquoted in small volumes into sterile tubes and stored at 4°C to prevent repeated freeze–thaw cycles that could cause DMSO degradation and release of harmful substances, while also minimizing the risk of contamination. If filtration of DMSO is required, a nylon filter membrane compatible with DMSO must be used.

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