Chemical identity

Milbemycin EP Impurity B (Free Base)

CAS 51596-10-2 · C31H44O7

01Identity

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

Lazychem IDLC-20326
PubChem CID9828343
NameMilbemycin EP Impurity B (Free Base)
CAS RN51596-10-2
Molecular formulaC31H44O7
Molecular weight528.68 g/mol
IUPAC name(2aE,2'R,2a1S,4E,5'S,6R,6'R,8E,11R,15S,17aR,20R,20aR)-2a1,20-dihydroxy-5',6,6',8,19-pentamethyl-2a1,3',4',5',6,6',7,10,11,14,15,17a,20,20a-tetradecahydrospiro[2H,17H-11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-17-one
InChIKeyZLBGSRMUSVULIE-GSMJGMFJSA-N

02Structure identifiers

2D structurePubChem CID 9828343
Two-dimensional chemical structure of Milbemycin EP Impurity B (Free Base), CAS 51596-10-2
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 5 rings, includes aliphatic carbon, has 10 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres10
Unassigned stereocentres0
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@H]1CC[C@]2(C[C@@H]3C[C@H](O2)C/C=C(/C[C@H](/C=C/C=C/4\CO[C@H]5[C@@]4([C@@H](C=C([C@H]5O)C)C(=O)O3)O)C)\C)O[C@@H]1C
InChINot listed
Formula from structureC31H44O7
Molecular weight from structure528.68 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

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 51596-10-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 51596-10-2 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

Milbemycin; Moxidectin

View associated product family

Other names

  • Milbemectin A3

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