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Selamectin impurities and related standards

5 reference standards related to Selamectin held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 5 of 5; 5 entries carry a structure drawing.

On this page

5 reference standards

All entries — structure, identifiers and pack sizes

  • Selamectin

    CAS 220119-17-5RS-I011236

    Formula C43H63NO11 MW 769.96

    COA per lot
  • Selamectin Impurity 9

    CAS 142680-85-1RS-S141002

    Formula C50H76O14 MW 901.14

    COA per lot
  • Selamectin Impurity 10

    CAS 220119-16-4RS-S141004

    Formula C50H74O14 MW 899.13

    COA per lot
  • Selamectin Impurity 11

    CAS 165108-44-1RS-S141003

    Formula C43H62O11 MW 754.96

    COA per lot
  • Selamectin Impurity 13

    CAS 165108-07-6RS-S141001

    Formula C43H63NO11 MW 769.97

    COA per lot

5 reference standards

Frequently asked

How many Selamectin-related reference standards do you hold?
5 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 5 of them and 5 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Selamectin impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Selamectin impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Selamectin impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.