Chemical identity

Permethrin EP Impurity B/ Permethrinic Acid Methyl Ester

CAS 61898-95-1 · C9H12Cl2O2

01Identity

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

Lazychem IDLC-24995
PubChem CID94591
NamePermethrin EP Impurity B/ Permethrinic Acid Methyl Ester
CAS RN61898-95-1
Molecular formulaC9H12Cl2O2
Molecular weight223.1 g/mol
IUPAC nameMethyl (1RS,2RS)-2-(2,2-dichloroethenyl)-3,3-dimethylcyclopropane-1-carboxylate
InChIKeyQJOOIMSFFIUFKX-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 94591
Two-dimensional chemical structure of Permethrin EP Impurity B/ Permethrinic Acid Methyl Ester, CAS 61898-95-1
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 1 ring, includes aliphatic carbon, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres2
Ring count1
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCl/C(Cl)=C/C1C(C(OC)=O)C1(C)C
InChINot listed
Formula from structureC9H12Cl2O2
Molecular weight from structure223.1 g/mol

03Stereochemistry

The published structure contains 0 defined and 2 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres0Structure assigned
Unassigned centres2Structure unspecified
Assignment statusUnassignedExact published identity
Tetrahedral upper bound≤ 4Before 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 61898-95-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 61898-95-1 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.

05Names and relationships

Associated parent compound

Permethrin

View API and impurity family

Other names

  • Permethrin Impurity B
  • Permethrin EP Impurity B
  • Permethrinic Acid Methyl Ester

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