# molecularWeight - Schema.org Property

> Source: https://schema.org/molecularWeight
> Extracted: 2026-02-16T18:50:12.804Z

---

**Note**: You are viewing the development version of [Schema.org](https://schema.org/). See [how we work](https://schema.org/docs/howwework.html) for more details.

A Schema.org Property

*This term is in the "new" area - implementation feedback and adoption from applications and websites can help improve our definitions.*

This is the molecular weight of the entity being described, not of the parent. Units should be included in the form '<Number> <unit>', for example '12 amu' or as '<QuantitativeValue>.

#### Source

[http://www.bioschemas.org/MolecularEntity](http://www.bioschemas.org/MolecularEntity)