Handling & storage
Use the batch evidence hierarchy—not a universal temperature promise.
The exact product label, signed CoA, and validated stability study take priority. Generic website text cannot establish sterility, compatibility, transport conditions, or a post-reconstitution shelf life.
Receiving and initial inspection
After opening or reconstitution
There is no universal beyond-use date across these products. Reconstitution changes concentration, pH, preservative exposure, container headspace, aggregation risk, and microbial risk. Do not copy the expiry from a different compound or from an approved pen/vial with another formulation.
Document diluent identity and lot, measured volume, date/time, operator, appearance, storage, and any validated discard time. Do not freeze unless the exact product data allow it; avoid repeated freeze-thaw cycles. Never treat bacteriostatic water as a sterilizing agent or universal compatible diluent.
Alternative solvents
Bacteriostatic water, preservative-free sterile water, 0.9% sodium chloride, dilute acetic acid and DMSO are not interchangeable. Solvent selection requires compound-specific compatibility and a validated SOP. Dilute acetic acid and DMSO are specialist laboratory solvents and are not general injectable diluents.
Optimal storage conditions
“Optimal” is product- and formulation-specific. For licensed medicines in the catalog families, follow the exact official package label. Those conditions do not automatically transfer to a lyophilized research vial. For unapproved research products, only a stability-indicating study can justify temperature, light, humidity, container, excursion, retest, or reconstituted-hold claims.