GHSLogic combines AI hazard extraction with a deterministic GHS engine, 14 regulatory-list checks and print-ready labels — for US, EU and Canada. Built by a regulatory professional.
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Free plan included · US HazCom · EU CLP · Canada WHMIS · 14 regulatory lists

Every output is a draft decision-support document and must be reviewed by a qualified SDS/GHS/regulatory professional before use or distribution.
Why teams switch to GHSLogic
Stop stitching together spreadsheets, PDFs and separate label tools. GHSLogic takes you from raw composition to a reviewed-ready draft SDS and matching label.
AI extraction and a one-click classification engine collapse the busywork of reading SDSs and computing mixture hazards.
Deterministic rules, visible confidence scores, source dates and a mandatory review footer — AI never overrides the classification.
Missing data is flagged, never silently filled. CBI and EU REACH Annex II rules are enforced automatically.
Already have finished SDSs? Upload one and get it screened free against the regulatory lists for outdated entries, revision age, pre-GHS phrases, missing UFI and 16-section gaps — plus a HazCom 2012→2024 migration mode.
One project, the right rules: HazCom, CLP/REACH and WHMIS — including UFI generation for EU labels.
Labels are legally inseparable from SDSs. Generate both from the same computed data, QR-ready.
Composition
Enter exact, range, max, or confidential concentrations. GHSLogic enforces EU REACH Annex II trade-secret rules at 0.1% automatically and supports nanomaterial and R&D components. Import a whole formulation from a spreadsheet.

AI extraction
Claude AI reads supplier PDFs and DOCX (even scanned, image-only sheets) and returns hazard classes, pictograms, signal words, H/P statements, exposure limits and transport data — each with a confidence score and flagged conflicts for your review. Working from your real supplier's sheet, not a generic substance SDS, means impurity-driven hazards are captured accurately — and drop off automatically when you switch to a supplier whose material doesn't carry them.

Classification
Acute toxicity by the ATE formula, sum-of-parts for skin, eye, STOT and CMR hazards, flash-point flammability, and additive OEL math. AI never overrides the rules. Out comes the signal word, pictograms and a label-ready precautionary-statement set.

Regulatory checks
Deterministic CAS and name matching against SVHC, REACH Annex XIV/XVII, CLP Annex VI, EPA TSCA, CERCLA, EPCRA, Prop 65, IARC, NTP and OSHA carcinogen lists — flagged by severity, with source dates shown. No AI inference on list membership.

Labels
Generate container and workplace label PDFs in standard sizes or Avery sheets — pictograms, signal word, hazard and precautionary statements, supplier identification and UFI (EU), QR-ready. SDS and label authoring in one place.

Draft SDS & export
Section-by-section draft generation with review and approval status, a finalize guardrail that blocks unfinished placeholders, version diffs and reissue reminders. Export to TXT, DOCX and PDF with your branding — or translate into seven languages.

SDS audit — free to try
Upload an existing finished SDS and GHSLogic screens it against the current regulatory lists for your jurisdiction — flagging outdated listings (new SVHC / Prop 65 / IARC / CERCLA & more), an aged revision date, legacy pre-GHS phrasing, missing UFI and 16-section gaps. A built-in HazCom 2012→2024 migration mode itemizes exactly what must change. Every free plan includes three audits.

See it in action
Watch the end-to-end workflow: composition, AI extraction, GHS classification, regulatory checks, labels and a draft SDS export.
How it works
Pick a jurisdiction (US, EU, US+EU or Canada) and add your supplier details.
Enter or import components, then upload supplier SDSs for AI hazard extraction.
Run the GHS engine, check regulatory flags, and review every output with confidence scores.
Generate a draft SDS, print-ready labels and branded exports — ready for professional sign-off.
Regulatory coverage
All checks are deterministic matches against official source data — no AI inference on list membership, and every match shows its source date.
Pricing
Founding-customer offer: Professional at $99/mo — locked for life (regularly $199/mo).
Free
$0
No credit card required
Professional
$99 / mo
$199/mo · founding price locked for life
No. GHSLogic is a draft decision-support assistant. Every output carries a mandatory disclaimer and must be reviewed by a qualified SDS/GHS/regulatory professional before use or distribution. It reduces authoring time — it does not replace professional judgement.
US (OSHA HazCom 2012/2024), EU (CLP / REACH) and Canada (WHMIS 2015), plus a combined US+EU workflow. Each applies the right classification rules and label requirements for that region.
Upload a supplier SDS (PDF or DOCX, including scanned image-only sheets) and GHSLogic extracts hazard classes, pictograms, signal words, H/P statements and exposure limits using Claude AI — shown with confidence scores and flagged conflicts. The deterministic classification engine never relies on the AI for the final result.
Yes. The Free plan lets you create a project and run full regulatory checks, GHS classification and 3 SDS audits — no credit card required. Exports, the draft SDS generator, labels and translations are on Professional.
Yes. Data is stored in a PostgreSQL database with row-level security; CBI/trade-secret designations are enforced at the API layer and EU REACH Annex II rules are applied automatically. MFA is available for additional account security.
More questions? See the full FAQ or contact us.
476 days remain until the US HazCom 2024 mixture SDS deadline. Start drafting today — free, no credit card.