Dichloromethane is a specialist solvent and its purchase should be tied to a clearly defined laboratory requirement. When the requested product is Dichloromethane LR, compare the actual product identity and stated specification with the approved method rather than relying on the solvent name or grade alone.
Put current safety information at the centre of the decision
Before purchase or use, obtain and review the current product label and safety data sheet. HSE’s COSHH guidance for dichloromethane provides task-control guidance for workplaces. It should be considered alongside the product SDS and the laboratory’s own COSHH assessment; this article is not a substitute for that assessment or for local safety advice.
Check the quantity and packaging required by the approved task, verify how the lot is identified, and retain the relevant product documents. Any change in product or work method should be reviewed by the responsible technical and safety staff. Do not infer that a grade designation changes the hazards or makes a particular use appropriate.
Review the Dichloromethane LR listing from Lab Forensics. The separate Online Reagents catalogue includes wider solvent and reagent options, while PMA provides the parent company’s chemical manufacturing background, built over more than 50 years.
Sources: HSE: Dichloromethane direct advice; HSE: Safety Data Sheets; HSE: COSHH risk assessment.