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LE 300 impurities and related standards

21 reference standards related to LE 300 held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 14 general reference standards · 6 impurity reference standards · 1 fine chemical. CAS numbers are listed for 21 of 21; 21 entries carry a structure drawing.

On this page

21 reference standards

All entries — structure, identifiers and pack sizes

  • LE 300

    CAS 274694-98-3C20H22N2

    MW 290.4

    IN STOCKRS-U211MMT

  • LE 300 Impurity 3

    CAS 1217181-04-8C25H29F3N4OSi

    MW 486.21

    BACK ORDERRS-Z395NZ4

  • LE 300 Impurity 6

    CAS 874656-02-7C5H12NPb+3

    MW 294.07

    IN STOCKRS-Z401LMW

  • LE 300 Impurity 7

    CAS 1268377-16-7C29H43N5O9

    MW 605.31

    CUSTOM SYNTHESISRS-Z396OMP

  • LE 300 Impurity 9

    CAS 1336919-40-4C27H35F5N6O2

    MW 570.27

    BACK ORDERRS-Z397H0S

  • LE 300 Impurity 12

    CAS 1268377-17-8C34H41N9O5

    MW 655.32

    BACK ORDERRS-Z396OMQ

  • LE 300 Impurity 15

    CAS 2474854-34-5C26H44N2O4S2

    MW 512.27

    BACK ORDERRS-Z401G7O

  • LE 300 Impurity 18

    CAS 1217181-03-7C5H12NPb+3

    MW 294.07

    IN STOCKRS-Z395NZ3

  • LE 300 Impurity 19

    CAS 1268377-19-0C14H20O5

    MW 268.13

    IN STOCKRS-Z396OMR

  • LE 300 Impurity 24

    CAS 874656-21-0C21H24N2

    BACK ORDERRS-L324001

  • LE 300 Impurity 29

    CAS 1217181-12-8C41H33FN8O4S

    MW 752.23

    BACK ORDERRS-Z395NZ5

  • LE 300 Impurity 32

    CAS 7262-67-1C16H22N2

    BACK ORDERRS-L324002

  • LE 300 Impurity 33

    CAS 1336919-58-4C44H50F4N6O4

    MW 802.38

    BACK ORDERRS-Z397H0T

  • LE 300 Impurity 34

    CAS 1336919-62-0C46H52N12O4

    MW 836.42

    BACK ORDERRS-Z397H0V

  • LE 300 Impurity 35

    CAS 1336919-60-8C46H53FN8O5

    MW 816.41

    BACK ORDERRS-Z397H0U

  • LE 300 Impurity 37

    CAS 124138-21-2C16H16O5

    MW 288.1

    IN STOCKRS-Z395WN4

  • LE 300 Impurity 38

    CAS 1268447-29-5C21H18ClN3O3S

    MW 427.08

    BACK ORDERRS-Z396ONC

  • LE 300 Impurity 40

    CAS 1541202-84-9C56H67FN8O19

    MW 1174.45

    BACK ORDERRS-Z400CDG

  • LE 300 Impurity 47

    CAS 1268377-21-4C18H20N2O

    MW 280.16

    CUSTOM SYNTHESISRS-Z396OMS

  • LE 300 Impurity 48

    CAS 874742-33-3C19H26F3N5O6

    MW 477.18

    BACK ORDERRS-Z401LMX

  • LE 300 Impurity 49

    CAS 1349981-79-8C49H87N15O15

    MW 1125.65

    BACK ORDERRS-Z397Q6F

21 reference standards

Frequently asked

How many LE 300-related reference standards do you hold?
21 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 21 of them and 21 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a LE 300 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 LE 300 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 LE 300 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.