Is Propylene safe for babies and kids?
Moderate risk for kidsInfants may be exposed to Propylene through residual monomer migration from food-contact plastics, bottles, and packaging. Immature hepatic conjugation and renal clearance prolong internal exposure.
What is propylene?
The IUPAC name is prop-1-ene.
Also known as: prop-1-ene, Propene, 1-Propene, Methylethylene.
- IUPAC name
- prop-1-ene
- CAS number
- 115-07-1
- Molecular formula
- C3H6
- Molecular weight
- 42.08 g/mol
- SMILES
- CC=C
- PubChem CID
- 8252
Risk for babies
Moderate riskInfants may be exposed to Propylene through residual monomer migration from food-contact plastics, bottles, and packaging. Immature hepatic conjugation and renal clearance prolong internal exposure.
Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.
Risk for pregnant and nursing people
Elevated riskPrenatal exposure to residual Propylene from food-contact materials is a concern due to potential developmental toxicity. Monomers may leach from plastics at elevated temperatures.
Suspected reproductive toxicant (GHS H361) or suspected endocrine disruptor. Precautionary approach warranted. Animal studies or limited human data suggest developmental toxicity potential.
Regulatory consensus
4 regulatory and scientific bodies have classified Propylene. The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| IARC (Group 3 — not classifiable as to carcinogenicity to humans — Vol 60, 1994; propylene itself; distinct from propylene oxide — an IARC Group 2B probable human carcinogen — which is a metabolite produced by epoxidation of propylene; metabolic conversion of propylene to propylene oxide in mammals occurs at low rates; no carcinogenicity classification for propylene itself by NTP, US EPA IRIS, or EFSA; one of the highest-volume commodity industrial chemicals globally) | 1994 | IARC Group 3 — not classifiable as to carcinogenicity (Vol 60, 1994); propylene itself is not classified as a carcinogen; distinct from propylene oxide (Group 2B); not classified by NTP, US EPA, or EFSA for carcinogenicity | |
| EPA CTX / IARC | — | Group 3 - Not classifiable as to its carcinogenicity to humans | |
| EPA CTX / Genetox | — | Genotoxicity: positive (Ames: positive, 4 positive / 4 negative reports) | |
| EPA CTX / Genetox | — | Genotoxicity: positive (Ames: positive, 4 positive / 4 negative reports) |
Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.
Where kids encounter propylene
- Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
- Occupational Environments — Factories, Warehouses, Transportation vehicles
Safer alternatives
Lower-risk approaches that achieve a similar outcome to Propylene:
-
Bio-based polymer alternatives where available
Trade-offs: Performance limitations. End-of-life complexity.Relative cost: 2-5× conventional
Frequently asked questions
Is propylene safe for kids?
Infants may be exposed to Propylene through residual monomer migration from food-contact plastics, bottles, and packaging. Immature hepatic conjugation and renal clearance prolong internal exposure.
What products contain propylene?
Propylene appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).
What should I do if my child is exposed to propylene?
Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.
Why do regulators disagree about propylene?
Propylene has been classified by 4 agencies including IARC (Group 3 — not classifiable as to carcinogenicity to humans — Vol 60, 1994; propylene itself; distinct from propylene oxide — an IARC Group 2B probable human carcinogen — which is a metabolite produced by epoxidation of propylene; metabolic conversion of propylene to propylene oxide in mammals occurs at low rates; no carcinogenicity classification for propylene itself by NTP, US EPA IRIS, or EFSA; one of the highest-volume commodity industrial chemicals globally), EPA CTX / IARC, EPA CTX / Genetox, EPA CTX / Genetox, with differing conclusions. Regulators apply different standards of evidence (animal data weighting, exposure-pattern assumptions, epidemiological power thresholds), which is why two scientific bodies can review the same data and reach different conclusions. See the regulatory consensus table on this page for the full picture.
See Propylene in the baby app
Look up products containing propylene, compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (1)
- IARC Monographs Vol 60 1994: Propylene Group 3 Not Classifiable; Distinct From Propylene Oxide Group 2B; Petrochemical Highest-Volume Commodity; Metabolic Epoxidation Low Rate; Combustion VOC Vehicle Exhaust; No NTP EPA EFSA Carcinogenicity Classification (1994) — regulatory
Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →