Impurity reference standards
N methylpyrrolidone impurity standards
For N methylpyrrolidone, the Zemixal catalogue holds 98 impurity and reference standards that support release testing, stability programmes and regulatory dossiers. Counted by type, there are 3 metabolites or hydroxylated analogues and 1 degradation product.
98reference materials
3metabolites
1degradants
Batches are supplied with a certificate of analysis, and the supporting spectra can be sent ahead of a purchase order so your QA team can review them. Laboratories use them to validate related-substance methods, set specification limits under ICH Q3A and Q3B, and identify unknown peaks in stability samples.
By impurity type
Metabolites3Hydroxy, desmethyl and conjugated forms
Degradants1N-oxides, dimers, lactones and breakdown products
Counts are based on product names. One compound can fall into more than one type.
All N methylpyrrolidone reference materials
1–60 of 98 standards
(1Alpha,8alpha,9Beta)-bicyclo[6.1.0]non-4-yn-9-ylmethanol
- CAS
- 1263166-90-0
- Formula
- C10H14O
- MW
- 150.22 g/mol
ZX-040465
(4S)-1-Methyl-2-oxo-4-imidazolidinecarboxylic Acid, tert-Butyl Ester
- CAS
- 83056-79-5
- Formula
- C9H16N2O3
- MW
- 200.23 g/mol
ZX-043139
2-Amino-4,5-dihydro-6-methyl-4-propyl-s-triazolo[1,5-a]pyrimidin-5-one
- CAS
- 27277-00-5
- Formula
- C9H13N5O
- MW
- 207.23 g/mol
ZX-039679
2,2,3-Trifluoro-3-[1,1,2,2,3,3-hexafluoro-3-(trifluoromethoxy)propoxy]-propanoic acid
- CAS
- 919005-14-4
- Formula
- C7H2F12O4
- MW
- 378.07 g/mol
ZX-035471
4-Benzyloxycarbonylaminopiperidine Hydrochloride
- CAS
- 207296-89-7
- Formula
- C13H19ClN2O2
- MW
- 270.75 g/mol
ZX-043142
Questions
N methylpyrrolidone impurities, answered
What N methylpyrrolidone reference materials are available?
The catalogue currently lists 98 compounds for N methylpyrrolidone, including 3 metabolites or hydroxylated analogues and 1 degradation product. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a N methylpyrrolidone impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a N methylpyrrolidone impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.