(3-(3,3-Dimethylureido)phenyl dimethylcarbamate)
- CAS
- 4939-59-7
- Formula
- C12H17N3O3
- MW
- 251.28 g/mol
VQ-034874
Impurity reference standards
Neostigmine impurities & reference standards
Characterised Neostigmine impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
17reference materials
1nitrosamine impurities
COAHPLC · NMR · MS on request
3-(1,3,3-Trimethylureido)phenyl dimethylcarbamate
- CAS
- 2434689-89-9
- Formula
- C13H19N3O3
- MW
- 265.31 g/mol
VQ-032102
3-Methoxy-N,N,N-trimethylbenzenaminium Methyl Sulfate
- CAS
- 39218-17-2
- Formula
- C11H19NO5S
- MW
- 277.34 g/mol
VQ-043242
Neostigmine Methyl Sulfate - Impurity A (Bromide Salt)
- CAS
- 1620-19-5
- Formula
- C9H14BrNO
- MW
- 232.12 g/mol
VQ-044425
FAQs — Neostigmine impurities
Which Neostigmine impurities do you supply?
We list 17 Neostigmine-related reference materials, including process impurities, degradation products, nitrosamine impurities and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Neostigmine impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Neostigmine impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Neostigmine impurity standards
We reply within one business day with price, pack options, lead time and documentation.