What characterisation data comes with an impurity standard?

A typical package includes HPLC purity, 1H-NMR and mass spectrum, with IR, TGA or water content where relevant. The exact data set is stated per product before ordering.

Can you synthesise an impurity that is not listed?

Custom synthesis can be arranged for many unlisted impurities and metabolites, subject to technical feasibility. Lead time and price are quoted after structure review.

Do you supply nitrosamine impurity standards?

Yes, a range of small-molecule nitrosamines and NDSRIs is available or can be synthesised to support risk assessments and confirmatory testing.

Are your standards pharmacopoeial primary standards?

No. Official primary standards are issued by the pharmacopoeias themselves. We supply impurity standards and secondary working standards, characterised and traceable, for use alongside official standards where your procedures allow.

How are milligram standards shipped internationally?

Most ship by express courier in small sealed vials with a COA and SDS. Temperature-sensitive standards can be packed with cold packs where the route allows.

Product division

Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot