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KUS 121 impurities and related standards

65 reference standards related to KUS 121 held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 61 general reference standards · 4 impurity reference standards. CAS numbers are listed for 65 of 65; 65 entries carry a structure drawing.

On this page

65 reference standards

All entries — structure, identifiers and pack sizes

  • KUS 121

    CAS 1357245-09-0C22H17FN4O3S

    MW 436.1

    BACK ORDERRS-Z397UQJ

  • KUS 121 Impurity 2

    CAS 1357245-19-2C12H10FNO4S

    MW 283.03

    IN STOCKRS-Z397UQO

  • KUS 121 Impurity 4

    CAS 1357246-04-8C25H29F3N4OSi

    MW 486.21

    BACK ORDERRS-Z397URJ

  • KUS 121 Impurity 6

    CAS 1357245-39-6C27H26F4N6O2

    MW 542.21

    CUSTOM SYNTHESISRS-Z397UQY

  • KUS 121 Impurity 8

    CAS 1357244-83-7C60H88N10O13

    MW 1156.65

    BACK ORDERRS-Z397UQ3

  • KUS 121 Impurity 10

    CAS 1357244-84-8C56H59F4N7O14S3

    MW 1225.32

    BACK ORDERRS-Z397UQ4

  • KUS 121 Impurity 12

    CAS 1357244-69-9C56H64N4O9

    MW 936.47

    BACK ORDERRS-Z397UPY

  • KUS 121 Impurity 14

    CAS 1357244-70-2C55H55N5O10

    MW 945.39

    BACK ORDERRS-Z397UPZ

  • KUS 121 Impurity 16

    CAS 1357244-95-1C64H83N13O17S

    MW 1337.58

    BACK ORDERRS-Z397UQC

  • KUS 121 Impurity 18

    CAS 1357245-10-3C31H41F2N9O3

    MW 625.33

    BACK ORDERRS-Z397UQK

  • KUS 121 Impurity 20

    CAS 1357245-05-6C25H22N4O2

    MW 410.17

    CUSTOM SYNTHESISRS-Z397UQF

  • KUS 121 Impurity 22

    CAS 1357245-32-9C28H55N2OS+

    MW 467.4

    BACK ORDERRS-Z397UQW

  • KUS 121 Impurity 24

    CAS 1357244-68-8C56H108N6O4S2

    MW 992.79

    BACK ORDERRS-Z397UPX

  • KUS 121 Impurity 30

    CAS 1357245-49-8C32H40F5N9O3

    MW 693.32

    CUSTOM SYNTHESISRS-Z397UR2

  • KUS 121 Impurity 34

    CAS 1357244-99-5C67H84N10O20S2

    MW 1412.53

    CUSTOM SYNTHESISRS-Z397UQE

  • KUS 121 Impurity 36

    CAS 1357245-74-9C50H78N10O13S

    MW 1058.55

    BACK ORDERRS-Z397URA

  • KUS 121 Impurity 38

    CAS 1357245-17-0C12H25NO4

    MW 247.18

    IN STOCKRS-Z397UQN

  • KUS 121 Impurity 40

    CAS 1357245-15-8C33H40FN3O7

    MW 609.29

    BACK ORDERRS-Z397UQM

  • KUS 121 Impurity 42

    CAS 1357245-22-7C13H15FN2O6

    MW 314.09

    IN STOCKRS-Z397UQR

  • KUS 121 Impurity 44

    CAS 1357244-82-6C61H65FN10O9S

    MW 1132.46

    BACK ORDERRS-Z397UQ2

  • KUS 121 Impurity 46

    CAS 1357245-31-8C24H30BrN5Si

    MW 495.15

    BACK ORDERRS-Z397UQV

  • KUS 121 Impurity 48

    CAS 1357245-89-6C67H76N2O19Si

    MW 1240.48

    BACK ORDERRS-Z397URF

  • KUS 121 Impurity 50

    CAS 1357244-91-7C63H61ClFN5O21

    MW 1277.35

    BACK ORDERRS-Z397UQA

  • KUS 121 Impurity 51

    CAS 1357244-75-7C49H56ClFN10O13S

    MW 1078.34

    BACK ORDERRS-Z397UQ0

  • KUS 121 Impurity 52

    CAS 1357244-77-9C54H56BF9N6O7

    MW 1082.42

    BACK ORDERRS-Z397UQ1

  • KUS 121 Impurity 53

    CAS 1357244-98-4C71H85FN12O13S

    MW 1364.61

    BACK ORDERRS-Z397UQD

  • KUS 121 Impurity 54

    CAS 1357245-73-8C54H67N11O7S

    MW 1013.49

    BACK ORDERRS-Z397UR9

  • KUS 121 Impurity 55

    CAS 1357244-86-0C60H64N11O14P

    MW 1193.44

    CUSTOM SYNTHESISRS-Z397UQ5

  • KUS 121 Impurity 56

    CAS 1357244-87-1C66H66N8O12S

    MW 1194.45

    CUSTOM SYNTHESISRS-Z397UQ6

  • KUS 121 Impurity 57

    CAS 1357245-43-2C30H30FN7O4S

    MW 603.21

    CUSTOM SYNTHESISRS-Z397UQZ

  • KUS 121 Impurity 58

    CAS 1357245-34-1C25H29F3N4OSi

    MW 486.21

    BACK ORDERRS-Z397UQX

  • KUS 121 Impurity 61

    CAS 1357245-14-7C29H33F5N8O4

    MW 652.25

    CUSTOM SYNTHESISRS-Z397UQL

  • KUS 121 Impurity 62

    CAS 1357246-12-8C41H33FN8O4S

    MW 752.23

    BACK ORDERRS-Z397URK

  • KUS 121 Impurity 63

    CAS 1357244-93-9C61H95N15O17

    MW 1309.7

    BACK ORDERRS-Z397UQB

  • KUS 121 Impurity 65

    CAS 1027961-32-5C22H24F2N6O2

    MW 442.19

    BACK ORDERRS-Z393DHF

  • KUS 121 Impurity 66

    CAS 1357245-44-3C31H40F2N8O3

    MW 610.32

    BACK ORDERRS-Z397UR0

  • KUS 121 Impurity 67

    CAS 1357167-04-4MoNiTeV

    MW 336.69

    IN STOCKRS-Z397UOB

  • KUS 121 Impurity 68

    CAS 1357245-71-6C47H53F3N4O17

    MW 1002.34

    BACK ORDERRS-Z397UR7

  • KUS 121 Impurity 71

    CAS 1357244-88-2C65H98IN5O17

    MW 1347.6

    BACK ORDERRS-Z397UQ7

  • KUS 121 Impurity 72

    CAS 1357245-72-7C45H58N6O21

    MW 1018.37

    BACK ORDERRS-Z397UR8

  • KUS 121 Impurity 73

    CAS 1357244-89-3C64H103N11O14

    MW 1249.77

    BACK ORDERRS-Z397UQ8

  • KUS 121 Impurity 76

    CAS 1357245-47-6C33H31F3N6O5

    MW 648.23

    BACK ORDERRS-Z397UR1

  • KUS 121 Impurity 77

    CAS 1357245-07-8C25H29F3N4OSi

    MW 486.21

    BACK ORDERRS-Z397UQH

  • KUS 121 Impurity 78

    CAS 1357245-08-9C7H9AlN

    MW 134.06

    IN STOCKRS-Z397UQI

  • KUS 121 Impurity 81

    CAS 123315-73-1C97H153N11O34S2

    MW 2080

    BACK ORDERRS-Z395UI1

  • KUS 121 Impurity 83

    CAS 1357245-81-8C53H79N17O11

    MW 1129.61

    BACK ORDERRS-Z397URC

  • KUS 121 Impurity 84

    CAS 1357245-55-6C39H49FN8O7

    MW 760.37

    BACK ORDERRS-Z397UR6

  • KUS 121 Impurity 85

    CAS 1357245-54-5C38H47F3N8O5

    MW 752.36

    BACK ORDERRS-Z397UR5

  • KUS 121 Impurity 86

    CAS 1357245-53-4C37H49FN8O7

    MW 736.37

    BACK ORDERRS-Z397UR4

  • KUS 121 Impurity 90

    CAS 1357245-27-2C20H19ClN2O3S

    MW 402.08

    BACK ORDERRS-Z397UQU

  • KUS 121 Impurity 91

    CAS 1357245-26-1C21H27N5

    MW 349.23

    IN STOCKRS-Z397UQT

  • KUS 121 Impurity 92

    CAS 1357245-20-5C12H12BrN3O3S

    MW 356.98

    IN STOCKRS-Z397UQP

  • KUS 121 Impurity 93

    CAS 1357244-90-6C52H59F2N15O17P2S2

    MW 1329.31

    BACK ORDERRS-Z397UQ9

  • KUS 121 Impurity 94

    CAS 1357245-82-9C52H73N19O9S2

    MW 1171.53

    BACK ORDERRS-Z397URD

  • KUS 121 Impurity 97

    CAS 1357245-94-3C76H84N4O14

    MW 1276.6

    BACK ORDERRS-Z397URI

  • KUS 121 Impurity 101

    CAS 1357245-21-6C50H51FN12O10S

    MW 1030.36

    BACK ORDERRS-Z397UQQ

  • KUS 121 Impurity 102

    CAS 1357245-85-2C70H74N2O13

    MW 1150.52

    CUSTOM SYNTHESISRS-Z397URE

  • KUS 121 Impurity 103

    CAS 2024-15-9C14H20N5O13P3

    MW 559.26

    BACK ORDERRS-K042001

  • KUS 121 Impurity 108

    CAS 1357245-92-1C62H101N15O12S3

    MW 1343.69

    BACK ORDERRS-Z397URH

  • KUS 121 Impurity 109

    CAS 1357245-90-9C61H73ClN13O13PS

    MW 1293.46

    BACK ORDERRS-Z397URG

  • KUS 121 Impurity 114

    CAS 1357245-24-9C14H14F3N3O4

    MW 345.09

    CUSTOM SYNTHESISRS-Z397UQS

  • KUS 121 Impurity 115

    CAS 1357245-51-2C35H38FN7O7S

    MW 719.25

    BACK ORDERRS-Z397UR3

  • KUS 121 Impurity 116

    CAS 1207320-37-3C25H30F2N8O2

    MW 512.25

    BACK ORDERRS-Z395JFF

  • KUS 121 Impurity 119

    CAS 1357245-06-7C5H12NPb+3

    MW 294.07

    IN STOCKRS-Z397UQG

  • KUS 121 Impurity 121

    CAS 1357245-80-7C89H142N8O41

    MW 1978.93

    BACK ORDERRS-Z397URB

65 reference standards

Frequently asked

How many KUS 121-related reference standards do you hold?
65 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 65 of them and 65 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a KUS 121 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 KUS 121 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 KUS 121 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.