Mass & moles converter
From sample mass to amount of substance.
Calculated locally in your browser.
Sample massAmountThe calculation trail will appear here.
Illustrative model · Not a particle-count diagram
Calculation details & record
Use the molecular weight of the actual molecular form.
From calculation to catalog
Explore related product families
Catalog navigation, not a recommendation for biological use. These selections do not depend on your inputs or results. Confirm molecular form and lot documentation separately.
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Methods and source records
These links document the calculation conventions or laboratory context. They do not validate a catalog lot or replace a controlled laboratory method.
- 01Technical source
NIST Guide to the SI: quantities and units
NIST SP 811, Chapter 8. Mass concentration, amount concentration and molar-mass conventions. This is an arithmetic reference, not evidence for any supplied lot.
Other tools
Continue the workflow
Peptide calculator
Concentration = mass ÷ final volume
Open →Peptide sequence analyzer
sequence → composition, mass, pI & charge
Open →Identity & alias checker
name → reviewed identity record
Open →Your next step
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Browse catalog sizes, or contact us about product identity, document availability and a quotation. Your calculator inputs are not attached to your inquiry.