Blog
Notes on compliance, data, and building this thing.
- June 21, 2026
What actually goes into a Safety Data Sheet (and why so many small traders don't have one)
A compliant SDS has 16 mandatory sections. Most small chemical traders either reuse an old one, buy one per document from a consultant, or skip it. Here's what's actually in it.
- June 3, 2026
GHS mixture classification, explained
Most products aren't a pure compound. Here is how the GHS "Purple Book" actually calculates a mixture's hazard classification from its components — the same math running inside ChemDocs.
- May 12, 2026
Why we don't let an LLM invent hazard classification data
Language models are good at producing plausible-looking text. A Safety Data Sheet needs to be correct, not plausible. Here is the line we draw and why.