D-Glu(4)-Teriparatide is an oxidatively deamidated peptide impurity of teriparatide in which the native Asn4 residue is replaced by D-glutamic acid, introducing a diastereomeric sequence variant with altered charge distribution and conformational behavior. Such species may arise during peptide synthesis, racemization, or stress-related side reactions involving Asn deamidation and epimerization pathways. Because no molecular formula or molecular weight is assigned here, characterization relies on intact-mass LC-MS, peptide mapping by LC-MS/MS, and orthogonal RP-HPLC or capillary electrophoresis to resolve closely related analogues. Its presence is monitored under impurity control principles for peptide therapeutics, including structural elucidation and limit setting based on process- and degradation-related heterogeneity.
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Toujours activé
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Toujours activé
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
![[Met(O)-18]-Teriparatide](https://veeprho.com/wp-content/uploads/2024/03/Met-O-18-Teriparatide.png "[Met(O)-18]-Teriparatide"){kind=small}
![[MetO8,18]-Teriparatide](https://veeprho.com/wp-content/uploads/2025/09/VE0025192-MetO8-18-Teriparatide.png "[MetO8,18]-Teriparatide")
