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
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Citrus Red 2
IN STOCKRS-M127099 -
Sudan Red 5B
BACK ORDERRS-F001385 -
Sudan Red 7B
IN STOCKRS-F001577 -
Sudan Red B
IN STOCKRS-F001458 -
Sudan Red Impurity 43
IN STOCKRS-S287001 -
Sudan Red Impurity 45
CUSTOM SYNTHESISRS-S287003 -
Sudan Red Impurity 46
IN STOCKRS-Z412SK1 -
Sudan Red Impurity 47
IN STOCKRS-S287004 -
Sudan Red Impurity 48
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.







