Insulin Degludec impurities and related standards

Insulin Degludec is held here as a working collection of 40 reference materials across 10 CAS numbers. Within the range, numbered impurities go up to 32. 32 of the entries are impurity-type materials of the parent, 1 carry a deuterium label. 10 entries carry a verified structure drawing, a coverage of 25%; the rest are listed without a structure rather than with an unverified one. 10 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 30 remain tier C and are kept for search coverage. Peptide entries behave differently from small molecules in every analytical respect: they adsorb to surfaces, they aggregate, and they elute as broad peaks unless the method uses an ion-pairing agent. Where the impurity is a chiral species, the enantiomeric ratio belongs on the specification alongside the chemical purity, because an achiral method reports the two together as one peak.

Sources: DailyMed (US NLM) - INSULIN DEGLUDEC INJECTION, SOLUTION [NOVO NORDISK PHARMA, INC.].

10 reference standards related to Insulin Degludec held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 5 impurity reference standards · 3 fine chemicals · 2 chemical reagents. CAS numbers are listed for 10 of 10; 10 entries carry a structure drawing.

On this page

10 reference standards

All entries — structure, identifiers and pack sizes

Insulin Degludec

CAS 844439-96-9C274H411N65O81S6

MW 6104.04

BACK ORDERRS-I234005
5-Benzyl L-Glutamate

CAS 1676-73-9C12H15NO4

MW 237.25

IN STOCKRS-U092055
D-Glutamic Acid 1-tert-Butyl Ester

CAS 25456-76-2C9H17NO4

MW 203.24

IN STOCKRS-U077254
HO-C16-Glu(OSU)-OH

CAS 943586-12-7C25H40N2O9

MW 512.59

BACK ORDERRS-C007040
L-Glutamic acid 5-tert-butyl ester

CAS 2419-56-9C9H17NO4

MW 203.24

IN STOCKRS-C033012
Insulin Degludec Impurity 1

CAS 843666-26-2C33H56N2O9

MW 624.81

BACK ORDERRS-I234003
Insulin Degludec Impurity 2

CAS 80165-23-7C16H23NO4

MW 293.36

IN STOCKRS-I234002
Insulin Degludec Impurity 16

CAS not assignedC27H44N2O9

MW 540.3

CUSTOM SYNTHESISRS-I001AEP
Insulin Degludec Impurity 20

CAS not assignedC29H48N2O9

MW 568.34

BACK ORDERRS-I001BT1
Insulin Degludec Impurity 20

CAS 843666-29-5C29H53NO7

MW 527.74

BACK ORDERRS-I234004

10 reference standards

Frequently asked

How many Insulin Degludec-related reference standards do you hold?

10 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 10 of them and 10 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply an Insulin Degludec 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 Insulin Degludec 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 Insulin Degludec 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.