- food
- industrial
N-Nitrosopyrrolidine
CAS 930-55-2 · 100/100 · High conf.
Also registered as 2 other CAS numbers
35884-45-8 · 68374-63-0
Concern score
100/100Critical concern based on regulatory listings.
High confidence
N-Nitrosopyrrolidine in plain language
Also known as 1-Nitrosopyrrolidine · No-pyr · Npyr · Pyr · 1-Nitrosopyrrolidin · 1-Pyrrolidinamine, N-nitroso-
Show all 17 names
1-nitroso-Pyrrolidine · 1-nitrosopirrolidina · N-n-pyr · N-Nitrosopyrrolidin · N-Nitrosopyrrolidine (NPYR) · N-pyr · N-nitroso pyrrolidine · Nitrosopyrrolidine · Pyrrole, tetrahydro-N-nitroso- · Pyrrolidine, 1-nitroso- · Tetrahydro-N-nitroso-Pyrrole
We don't have a plain-language description for N-Nitrosopyrrolidine yet.
- Critical concern: no hazard classifications on record.
Why it's flagged
EPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies.
The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.
Regulation
No restrictions found. N-Nitrosopyrrolidine appears in these published regulatory listings.
- Found in consumer products
- Industrial
EUEFSAEFSA opinionRe-evaluation of potassium nitrite (E 249) and sodium nitrite (E 250) as food additives (EFSA ANS)
- Re-evaluation of potassium nitrite (E 249) and sodium nitrite (E 250) as food additives (EFSA ANS)Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies.
- EPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
No JECFA evaluation on file.
EFSA
European Food Safety Authority
Re-evaluation of potassium nitrite (E 249) and sodium nitrite (E 250) as food additives (EFSA ANS)
2017 · EU EFSA listing · Read the source →
Evidence & sources
No graded research studies for N-Nitrosopyrrolidine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
EFSA OpenFoodTox
regulatory · updated 2026-10-04
- Open →
EPA Chemical and Products Database
exposure · updated March 8, 2019
- Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
- Open →
FDA GSRS UNII
registry · updated 2026-02-26
- Open →
openFDA Substance
registry · updated 2026-05-24
- Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Reference links (1)
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Food use
Food-use source coverage is present in the current record.
The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.
Fragrance avoidance
No fragrance-linked caution surfaced in the current profile.
This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.
Where it has been recorded
How often EPA CPDat has listed N-Nitrosopyrrolidine in a product composition. These are source records, not Greenveil catalog products.
Source records
1
Named organisations
4
Laboratory supplies
See products using N-Nitrosopyrrolidine →Found in these products
Their ingredient lists include N-Nitrosopyrrolidine; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
