Category: Sourcing and Procurement

When a research peptide shipment is hazardous material in the USA: the nine transport classes, why dry ice is regulated, and how solvents change it.

Crude, desalted and >95% peptide grades explained: which label is a real purity specification, why higher grades cost more, and how to choose.

How OSHA hazard communication applies to research chemicals: when a label is required, what it must carry, and which duties fall to the laboratory.

How a vial with no lot number is matched to its published HPLC test by crimp and cap colour, what per-product testing shows, and what to check on arrival.

The phrase is close to universal and almost never specified. Four questions turn it from a slogan back into a claim you can check.

Price per vial is the least informative number in a quote. Four adjustments make two offers actually comparable, and they usually reorder the list.

Buying to the shape of a programme rather than reordering piecemeal changes both cost and variance. Here is how to think about the trade-off.

What to collect, what to keep, and what to do about a supplier who cannot provide part of it — a practical record structure for laboratory purchasing.

What to verify when a shipment arrives, what to record, and what to do if something does not match — written for the receiving desk, not the bench.

Laboratory procurement rarely runs on a credit card. How institutional purchasing works with a research supplier, and what to arrange first.