Knowledge hub
Articles from the Molekula editorial team
Coverage of chemistry, regulatory updates, methods, supply-chain insight, and product spotlights. New articles published daily.
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Regulatory
Why Batch-Level Certificates of Analysis Matter for Regulated Buyers
Batch-level Certificates of Analysis (CoAs) are essential for compliance in regulated industries. They provide verified, traceable data on purity, identity, and impurities for each production batch, ensuring adherence to USP, EP, BP, ISO, and REACH standards. Without batch-specific CoAs, regulatory submissions may be rejected.
Jun 27, 2026 · 4 min read -
Regulatory
IATA/ADR Transport Classifications for Laboratory Chemicals
Laboratory chemicals are subject to IATA (air) and ADR (road) regulations based on hazard classification. Key categories include flammable liquids (Class 3), corrosives (Class 8), and toxic substances (Class 6.1). Proper classification requires evaluation of flash point, toxicity (LD50), and reactivity. Labels, packaging, and documentation must comply with UN recommendations and regulatory standards.
May 31, 2026 · 5 min read -
Regulatory
Cold-chain shipping regulations for biological reagents
Biological reagents must be shipped under controlled temperature conditions to maintain stability and integrity. Regulations vary by region, with EU and US frameworks requiring compliance with ISO 11607, REACH, and TSCA. Temperature monitoring via validated data loggers and adherence to GHS labelling are mandatory. Shipping durations and storage conditions depend on the reagent type and stability data.
May 30, 2026 · 5 min read -
Regulatory
GHS Pictograms and Hazard Statements: A Buyer's Guide for Chemists and Biotech Teams
GHS pictograms and hazard statements are standardised across global chemical regulations to communicate hazards clearly. This guide explains their structure, interpretation, and compliance requirements under REACH, TSCA, and GHS, with reference to specific hazard classes and signal words.
May 27, 2026 · 5 min read -
Regulatory
TSCA Inventory: What U.S. Importers Should Know
The U.S. Toxic Substances Control Act (TSCA) inventory lists chemicals manufactured or imported into the United States. Importers must verify a chemical’s presence on the TSCA Inventory before importing. As of 2023, the inventory includes over 86,000 chemicals. Non-inventory chemicals require pre-manufacture notification (PMN) under TSCA §5. Compliance is enforced by the U.S. Environmental Protection Agency (EPA).
May 26, 2026 · 4 min read -
Regulatory
REACH Compliance for Chemical Suppliers: Key Requirements and Deadlines for 2026
All chemical suppliers operating in the EU must comply with REACH regulations by 2026. Key obligations include registration of substances above 1 tonne per year, submission of safety data, and adherence to authorisation and restriction requirements. Non-compliance risks market access and legal penalties.
May 25, 2026 · 4 min read