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Sudan Red impurities and related standards

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

In this group: 6 food and environmental standards · 1 multi-component standard · 1 general reference standard · 1 stable isotope labelled standard. CAS numbers are listed for 9 of 9; 9 entries carry a structure drawing.

On this page

9 reference standards

All entries — structure, identifiers and pack sizes

  • Citrus Red 2

    CAS 6358-53-8C18H16N2O3

    MW 308.3

    IN STOCKRS-M127099
  • Sudan Red 5B

    CAS 1320-06-5C26H24N4O

    MW 408.51

    BACK ORDERRS-F001385
  • Sudan Red 7B

    CAS 6368-72-5C24H21N5

    MW 379.5

    IN STOCKRS-F001577
  • Sudan Red B

    CAS 3176-79-2C24H20N4O

    MW 380.45

    IN STOCKRS-F001458
  • Sudan Red Impurity 43

    CAS 77061-58-6C13H18N5+·Cl-

    MW 279.77

    IN STOCKRS-S287001
  • Sudan Red Impurity 45

    CAS 722-25-8C13H13N3

    MW 211.27

    CUSTOM SYNTHESISRS-S287003
  • Sudan Red Impurity 46

    CAS 79349-35-2C13H13N3

    MW 211.11

    IN STOCKRS-Z412SK1
  • Sudan Red Impurity 47

    CAS 13556-29-1C17H16N2O2

    MW 280.33

    IN STOCKRS-S287004
  • Sudan Red Impurity 48

    CAS 1398109-09-5C17H14N2O2

    MW 281.32

    IN STOCKRS-S287002

9 reference standards

Frequently asked

How many Sudan Red-related reference standards do you hold?
9 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 9 of them and 9 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Sudan Red 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 Sudan Red 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 Sudan Red 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.