Research tools

Every tool here computes its result with decimal arithmetic in a tested calculation service. None of them use a language model to produce a number, and all of them show the arithmetic that led to the answer.

Most used

Solution preparation calculator

Concentration, required volume, and a live graduated-device visualiser. Exact position and nearest readable graduation are reported separately.

Supplies and duration planner

Containers, solvent bottles, and disposables for a schedule you define, with a configurable reserve and every arithmetic step exposed.

Concentration decay visualiser

Illustrates a published half-life figure: single-event decay, accumulation across repeated events, steady-state ratio, and time to steady state.

Schedule projection

Converts a schedule you already have into calendar dates and a downloadable .ics file. It does not decide what the schedule should be.

Cost model

Total, per-event, per-day, and per-month cost from prices you enter.

Unit converter

Milligrams, micrograms, grams, millilitres, and microlitres, with concentration-aware mass-to-volume conversion.

Interaction explorer

Pairwise evaluation against a curated register. Severity and evidence certainty remain separate axes.

Study comparison

Place compounds side by side across evidence grade, human study count, regulatory status, and reported study parameters.

Verification

How the mathematics is checked

Property-based testing

Rather than a handful of hand-worked examples, the calculation engine is tested against mathematical invariants across thousands of randomly generated valid inputs. Concentration multiplied by solvent volume must return the original material quantity. Target volume multiplied by concentration must return the target quantity.

Ceiling behaviour is asserted

For supplies planning, the required container count multiplied by the quantity per container must always meet or exceed the total requirement, and one container fewer must always be insufficient. Both directions are tested, because only testing one would allow systematic over-ordering to pass.

Rounding is never silent

Values are stored canonically in micrograms and microlitres using decimal arithmetic, so floating-point display formatting can never become the source of truth. Where a displayed figure differs from the exact value, both are shown.