Chemical identity

Netilmicin

CAS 56391-56-1 · C21H41N5O7

01Identity

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

Lazychem IDLC-101166
PubChem CID441306
NameNetilmicin
CAS RN56391-56-1
Molecular formulaC21H41N5O7
Molecular weight475.6 g/mol
IUPAC name(2R,3R,4R,5R)-2-[(1S,2S,3R,4S,6R)-4-amino-3-[[(2S,3R)-3-amino-6-(aminomethyl)-3,4-dihydro-2H-pyran-2-yl]oxy]-6-(ethylamino)-2-hydroxycyclohexyl]oxy-5-methyl-4-(methylamino)oxane-3,5-diol
InChIKeyCIDUJQMULVCIBT-MQDUPKMGSA-N

02Structure identifiers

2D structurePubChem CID 441306
Two-dimensional chemical structure of Netilmicin, CAS 56391-56-1
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 3 rings, includes aliphatic carbon, has 11 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres11
Unassigned stereocentres0
Ring count3
Secondary amines2
Tertiary amines0
N-methyl amine sites0
SMILESCCN[C@@H]1C[C@@H]([C@H]([C@@H]([C@H]1O[C@@H]2[C@@H]([C@H]([C@@](CO2)(C)O)NC)O)O)O[C@@H]3[C@@H](CC=C(O3)CN)N)N
InChINot listed
Formula from structureC21H41N5O7
Molecular weight from structure475.6 g/mol

03Stereochemistry

The published structure contains 11 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres11Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 2,048Before 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.

04Possible N-nitroso structures

Shown for structural screening only. These candidates are not confirmed impurities, formation predictions or analytical findings.

Matched amine site2 candidates
Chemical structure of Netilmicin with the matched amine site highlighted in amber
Amber identifies the screened atom and adjacent bonds.
Possible structure candidateUnverified identity
First calculated possible N-nitroso structure derived from Netilmicin, with the new N-nitroso group highlighted in amber
The new N-N=O atoms and bonds are highlighted. No CAS number or compound name is assigned by this calculation.
Candidate 1Possible N-nitroso structural candidate
Calculated formula
C21H40N6O8
Candidate SMILES
CCN(N=O)[C@@H]1C[C@H](N)[C@@H](O[C@H]2OC(CN)=CC[C@H]2N)[C@H](O)[C@H]1O[C@H]1OC[C@](C)(O)[C@H](NC)[C@H]1O
Candidate 2Possible N-nitroso structural candidate
Calculated formula
C21H40N6O8
Candidate SMILES
CCN[C@@H]1C[C@H](N)[C@@H](O[C@H]2OC(CN)=CC[C@H]2N)[C@H](O)[C@H]1O[C@H]1OC[C@](C)(O)[C@H](N(C)N=O)[C@H]1O

Interpretation: A structural alert alone does not establish that a nitrosamine forms. Evaluate nitrite sources, amine reagents, pH, temperature, process sequence, purge and analytical evidence.

05India 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 56391-56-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 56391-56-1 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.

06Names and relationships

Associated parent compound

No parent compound is listed.

Other names

  • netilmicin
  • 1-N-Ethylsisomicin
  • 56391-56-1
  • Netilmicina
  • Netilmicine
  • Netilmicinum
  • Nettacin
  • Vectacin
  • Netillin
  • Netilyn
  • Netira
  • 1-N-Aethylsisomicin

Related records from the same parent family

No related records are linked by parent name.

07Documented 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.

08Sources