Ampicillin EP Impurity G is the diketopiperazine (3R,6R)-3,6-diphenylpiperazine-2,5-dione, CAS 31485-02-6. It is used as an ampicillin-related analytical impurity for chromatographic identification, method development and related pharmaceutical research.

Product Information

Diketopiperazine Identity

The compound is a cyclic dipeptide-like 2,5-diketopiperazine containing two phenyl substituents. Its value in this context is analytical comparison with ampicillin-related impurity profiles.

Reference-Material Status and Quantitative Use

Commercial availability of CAS 31485-02-6 as a certified reference material does not establish the status of every lot. Certified use requires an appropriate assigned value and traceability in the specific certificate.

Analytical buyers should distinguish qualitative peak identification, method development and quantitative calibration because each use can require a different level of documentation. For quantitative work, review the lot-specific assay or purity basis and preparation instructions.

See related pharmaceutical impurity references.

Product Documents

MSDS - Ampicillin EP Impurity G (AS4096)

The Safety Data Sheet provides product identification, laboratory handling guidance, exposure controls, transport information and safety information for research use.

Certificates of Analysis (COAs) are batch-specific. Please contact us to request the COA for your product, and we will provide it by email.

Frequently Asked Questions

What is the chemical identity of Impurity G?

It is (3R,6R)-3,6-diphenylpiperazine-2,5-dione.

Is every commercial lot a CRM?

No. Certified status depends on the certificate supplied with the specific lot.

Research Use Only.