Chemical identity

Neomycin sulfate EP Impurity A/ Neamine / Tobramycin EP Impurity C / Framycetin EP Impurity A

CAS 3947-65-7 · C12H26N4O6

01Identity

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

Lazychem IDLC-23236
PubChem CID72392
NameNeomycin sulfate EP Impurity A/ Neamine / Tobramycin EP Impurity C / Framycetin EP Impurity A
CAS RN3947-65-7
Molecular formulaC12H26N4O6
Molecular weight322.36 g/mol
IUPAC name2-Deoxy-4-O-(2,6-diamino-2,6-dideoxy-a-D-glucopyranosyl)-D-streptamine
InChIKeySYJXFKPQNSDJLI-HKEUSBCWSA-N

02Structure identifiers

2D structurePubChem CID 72392
Two-dimensional chemical structure of Neomycin sulfate EP Impurity A/ Neamine / Tobramycin EP Impurity C / Framycetin EP Impurity A, CAS 3947-65-7
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aliphatic carbon, has 10 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres10
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC1[C@H]([C@@H]([C@H]([C@@H]([C@H]1N)O[C@@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CN)O)O)N)O)O)N
InChINot listed
Formula from structureC12H26N4O6
Molecular weight from structure322.36 g/mol

03Stereochemistry

The published structure contains 10 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres10Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 1,024Before symmetry reduction

Published same-connectivity configurations

2 records

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.

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 3947-65-7 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 3947-65-7 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

Neomycin; Framycetin

View API and impurity family

Other names

  • Neamine
  • Framycetin EP Impurity A / Neamine
  • Neomycin Sulfate EP Impurity A
  • Tobramycin EP Impurity C
  • Framycetin EP Impurity A
  • 3947-65-7
  • Neomycin A
  • Negamicin
  • Nebramycin X
  • Dekamycin V
  • Neamin
  • 2-Desoxy-4-O-(2,6-diamino-2,6-didesoxy-alpha-D-glucopyranosyl)-D-streptamin

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