# Le Bel-van't Hoff rule

> number of stereoisomers without any internal planes of symmetry is 2ⁿ

**Wikidata**: [Q17064217](https://www.wikidata.org/wiki/Q17064217)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Le_Bel–Van_'t_Hoff_rule)  
**Source**: https://4ort.xyz/entity/le-bel-van-t-hoff-rule