Chemical identity

Semaglutide Impurity 143

CAS 1890228-90-6 · C44H54N6O9

01Identity

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

Lazychem IDLC-27963
PubChem CID168441713
NameSemaglutide Impurity 143
CAS RN1890228-90-6
Molecular formulaC44H54N6O9
Molecular weight810.9 g/mol
IUPAC name2-[[(2S)-5-[(2-methylpropan-2-yl)oxy]-2-[[(2S)-2-[[(2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(1-tritylimidazol-4-yl)propanoyl]amino]propanoyl]amino]-5-oxopentanoyl]amino]acetic acid
InChIKeyCGVSXIBMGOKFIZ-DEQVZIQVSA-N

02Structure identifiers

2D structurePubChem CID 168441713
Two-dimensional chemical structure of Semaglutide Impurity 143, CAS 1890228-90-6
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, has 3 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres3
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@@H](C(=O)N[C@@H](CCC(=O)OC(C)(C)C)C(=O)NCC(=O)O)NC(=O)[C@@H](CC1=CN(C=N1)C(C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4)NC(=O)OC(C)(C)C
InChINot listed
Formula from structureC44H54N6O9
Molecular weight from structure810.9 g/mol

03Stereochemistry

The published structure contains 3 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres3Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 8Before 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 1890228-90-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1890228-90-6 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

Semaglutide

View API and impurity family

Other names

  • (6R,9S,12S)-12-(3-(tert-Butoxy)-3-oxopropyl)-2,2,9-trimethyl-4,7,10,13-tetraoxo-6-((1-trityl-1H-imidazol-4-yl)methyl)-3-oxa-5,8,11,14-tetraazahexadecan-16-oic acid

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