Enum: ChiralityEnum

Chirality/stereochemistry descriptors

URI: valuesets:ChiralityEnum

Permissible Values

Value	Meaning	Description	Cahn Ingold Prelog	Fischer Projection	Geometric Isomer	Internal Symmetry	Optical Rotation
R		Rectus (right) configuration	true
S		Sinister (left) configuration	true
D		Dextrorotatory		true			positive
L		Levorotatory		true			negative
RACEMIC		Racemic mixture (50:50 of enantiomers)					zero
MESO		Meso compound (achiral despite stereocenters)				true
E		Entgegen (opposite) configuration			true
Z		Zusammen (together) configuration			true

Slots

Name	Description
chirality	Chirality/stereochemistry descriptors

Identifier and Mapping Information

Schema Source

• from schema: https://w3id.org/linkml/valuesets

LinkML Source

name: ChiralityEnum
instantiates:
- valuesets_meta:ValueSetEnumDefinition
description: Chirality/stereochemistry descriptors
title: Chirality
from_schema: https://w3id.org/linkml/valuesets
contributors:
- orcid:0000-0002-6601-2165
- https://github.com/anthropics/claude-code
status: DRAFT
rank: 1000
permissible_values:
  R:
    text: R
    description: Rectus (right) configuration
    annotations:
      cahn_ingold_prelog:
        tag: cahn_ingold_prelog
        value: 'true'
  S:
    text: S
    description: Sinister (left) configuration
    annotations:
      cahn_ingold_prelog:
        tag: cahn_ingold_prelog
        value: 'true'
  D:
    text: D
    description: Dextrorotatory
    annotations:
      fischer_projection:
        tag: fischer_projection
        value: 'true'
      optical_rotation:
        tag: optical_rotation
        value: positive
  L:
    text: L
    description: Levorotatory
    annotations:
      fischer_projection:
        tag: fischer_projection
        value: 'true'
      optical_rotation:
        tag: optical_rotation
        value: negative
  RACEMIC:
    text: RACEMIC
    description: Racemic mixture (50:50 of enantiomers)
    annotations:
      optical_rotation:
        tag: optical_rotation
        value: zero
  MESO:
    text: MESO
    description: Meso compound (achiral despite stereocenters)
    annotations:
      internal_symmetry:
        tag: internal_symmetry
        value: 'true'
  E:
    text: E
    description: Entgegen (opposite) configuration
    annotations:
      geometric_isomer:
        tag: geometric_isomer
        value: 'true'
  Z:
    text: Z
    description: Zusammen (together) configuration
    annotations:
      geometric_isomer:
        tag: geometric_isomer
        value: 'true'