Regarding Metamizole / 4-Methylaminoantipyrine:
Our current GC/MS protocol can not distinguish between metamizole and 4-methylaminoantipyrine. 4-Methylaminoantipyrine is a metabolite of metamizole. Their mass spectra are indistinguishable because metamizole undergoes thermal decomposition to 4-methylaminoantipyrine and aminopyrine during GC-MS analysis. The chemical identified in this sample could be either Metamizole or 4-Methylaminoantipyrine, or a combination of the two.
A reminder that DrugsData is not allowed to provide quantitative results for samples it analyzes, because our lab is constrained by rules set by the US DEA. Inert diluents, fillers and binders can not be reported even if they might be present. This means 'purity' can't be confirmed, either, as described in the DrugsData FAQ.
Send in a sample for testing
DrugsData tests all psychoactive drugs including ecstasy tablets, powders, research chemicals, novel pschoactive substances, and other drugs through our licensed laboratory. Ecstasy/Molly tablets cost $100. Recreational drug powder/crystal/blotter costs $100. Pharmaceuticals, supplements and all others cost $150 per analysis.
Should the public have access to independent analysis of the products they consume?
The vast majority of analyses of over-the-counter, prescription, and recreational drugs are performed in secret with no independent oversite or review. No other historical record, free from politically-controlled agencies, is currently available in North America nor most other parts of the world.
DrugsData, a project of Erowid Center, needs the support of professionals, students, parents, individuals with means, and small foundations for a total yearly budget of around $120,000 USD. Erowid Center's general budget and the co-pays we require fund most of this cost.
Our current GC/MS protocol can not distinguish between metamizole and 4-methylaminoantipyrine. 4-Methylaminoantipyrine is a metabolite of metamizole. Their mass spectra are indistinguishable because metamizole undergoes thermal decomposition to 4-methylaminoantipyrine and aminopyrine during GC-MS analysis. The chemical identified in this sample could be either Metamizole or 4-Methylaminoantipyrine, or a combination of the two.