Insights
Insights on fine chemical sourcing and specification
Practical notes from our daily work: how to specify an intermediate so that quotes come back comparable, what a Chinese supplier’s documents should actually contain, and where a regulatory requirement changes the choice of material. Written for buyers and process chemists.
We publish when there is something specific to say — a specification detail that moves cost, a document a customs broker will ask for, a step where the grade of the input decides the yield. No press releases, no recycled industry news.
GLP-1 side chains and linkers: what to specify before you send an RFQ
Four small building blocks decide whether a GLP-1 campaign works. The specifications that make supplier quotes comparable, and the six-line RFQ we would send.
2 November 2026 · 7 min readTechnical notesOLED material COAs: what 3N, 4N and 5N purity really tell you
An OLED COA carries two purity claims that are not the same measurement. What the N grades hide, what sublimation removes, and the seven lines of a real electronic-grade specification.
9 November 2026 · 7 min readLooking for a grade or a document that is not covered here? Send us the CAS number, the quantity and the specification you work to, and we will tell you what is available and what is not.
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