Phenobarbital impurities and related standards
15 reference standards related to Phenobarbital held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
In this group: 11 impurity reference standards · 3 stable isotope labelled standards · 1 fine chemical. CAS numbers are listed for 15 of 15; 15 entries carry a structure drawing.
On this page
15 reference standards
All entries — structure, identifiers and pack sizes
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4-Hydroxy Phenobarbital-d5
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Methylphenobarbital-d3
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Phenobarbital
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Phenobarbital-d5 (phenyl-d5)
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Phenobarbital Impurity 4
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Phenobarbital Impurity 8
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Phenobarbital Impurity 9
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Phenobarbital Impurity 11
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Phenobarbital Impurity 14
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Phenobarbital Impurity 15 (Benzobarbital)
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Phenobarbital Impurity 19
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Phenobarbital Impurity 21
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Phenobarbital Impurity 26
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Phenobarbital Impurity 29
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15 reference standards
Frequently asked
How many Phenobarbital-related reference standards do you hold?
15 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 15 of them and 15 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Phenobarbital 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 Phenobarbital 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 Phenobarbital 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.














