Chemical identity

Tertiary dehydrated impurity / Fexofenadine EP Impurity G

CAS 1187954-57-9 · C32H37NO3

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-29279
PubChem CID12088014
NameTertiary dehydrated impurity / Fexofenadine EP Impurity G
CAS RN1187954-57-9
Molecular formulaC32H37NO3
Molecular weight483.64
IUPAC name2-[4-[(1RS)-4-[4-(Diphenylmethylidene)piperidin-1-yl]-1-hydroxybutyl]phenyl]-2-methylpropanoic acid
InChIKeyBRVDCQYIFNJGSU-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 12088014
Two-dimensional chemical structure of Tertiary dehydrated impurity / Fexofenadine EP Impurity G, CAS 1187954-57-9
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres1
Ring count4
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESCC(C)(C1=CC=C(C=C1)C(CCCN2CCC(=C(C3=CC=CC=C3)C4=CC=CC=C4)CC2)O)C(=O)O
InChINot listed
Formula from structureC32H37NO3
Molecular weight from structure483.64

03Stereochemistry

The published structure contains 0 defined and 1 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.

Defined centres0Structure assigned
Unassigned centres1Structure unspecified
Assignment statusUnassignedExact published identity
Tetrahedral upper bound≤ 2Before symmetry reduction

Published same-connectivity configurations

1 record

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 1187954-57-9 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1187954-57-9 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Fexofenadine

View API and impurity family

Other names

  • Tertiary dehydrated impurity
  • Fexofenadine EP Impurity G
  • 2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)-1-hydroxybutyl)phenyl)-2-methylpropanoic acid
  • 1187954-57-9
  • Fexofenadine Impurity G
  • 4LJ8ZR5GLC
  • 4-[4-[4-(Diphenylmethylene)-1-piperidinyl]-1-hydroxybutyl]-a,a-dimethyl-benzeneacetic Acid
  • 2-[4-[4-(4-benzhydrylidenepiperidin-1-yl)-1-hydroxybutyl]phenyl]-2-methylpropanoic acid
  • 4-[4-[4-(Diphenylmethylene)-1-piperidinyl]-1-hydroxybutyl]-alpha,alpha-dimethyl-benzeneacetic Acid
  • Benzeneacetic acid, 4-[4-[4-(diphenylmethylene)-1-piperidinyl]-1-hydroxybutyl]-a,a-dimethyl-
  • 2-[4-[(1RS)-4-[4-(Diphenylmethyl-idene)piperidin-1-yl]-1-hydroxybutyl]phenyl]-2-methylpropanoic Acid
  • UNII-4LJ8ZR5GLC

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources