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Enum: ChiralityEnum

Chirality/stereochemistry descriptors

URI: valuesets:ChiralityEnum

Permissible Values

Value Meaning Description
R None Rectus (right) configuration
S None Sinister (left) configuration
D None Dextrorotatory
L None Levorotatory
RACEMIC None Racemic mixture (50:50 of enantiomers)
MESO None Meso compound (achiral despite stereocenters)
E None Entgegen (opposite) configuration
Z None Zusammen (together) configuration

Slots

Name Description
chirality Chirality/stereochemistry descriptors

Identifier and Mapping Information

Schema Source

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

LinkML Source

name: ChiralityEnum
description: Chirality/stereochemistry descriptors
from_schema: https://w3id.org/linkml/valuesets
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'