Baby Safety / Compounds / Tin (inorganic)

Is Tin (inorganic) safe for babies and kids?

Context-dependent for kids

Infants are extremely vulnerable to Tin (inorganic) due to immature blood-brain barrier, higher gastrointestinal absorption rates (40-50% vs 3-10% in adults), and rapidly developing neurology. Even trace exposure can cause irreversible neurodevelopmental harm.

What is tin (inorganic)?

Also known as: TIN, tin atom, RefChem:1100127, Sn.

CAS number
7440-31-5
Molecular formula
Sn
Molecular weight
118.71 g/mol
SMILES
[Sn]
PubChem CID
5352426

Risk for babies

Context-dependent

Infants are extremely vulnerable to Tin (inorganic) due to immature blood-brain barrier, higher gastrointestinal absorption rates (40-50% vs 3-10% in adults), and rapidly developing neurology. Even trace exposure can cause irreversible neurodevelopmental harm.

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.

What to do: 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.

Risk for pregnant and nursing people

Context-dependent

Regulatory consensus

1 regulatory bodyhas classified Tin (inorganic).

AgencyYearClassificationNotes
EDC Assessment—Suspected endocrine disruptor

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 tin (inorganic)

  • Consumer Products — tin cans, solder, organotin antifouling paints
  • Food Chain — canned food migration

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Tin (inorganic):

  • Aluminum or stainless steel food containers
    Trade-offs: Eliminates tin migration from can linings. Glass is even better (zero migration). Higher cost and weight. Aluminum requires lacquer lining too (but no tin).
    Relative cost: 1.5-3× (longer lifespan)
  • BPA-NI can linings (acrylic, polyester, oleoresin)
    Trade-offs: Modern tin can linings reduce tin/BPA migration simultaneously. 'BPA-NI' (non-intent) formulations standard since 2018. Some use polyester or oleoresin.
    Relative cost: 1.2-2×

Frequently asked questions

Is tin (inorganic) safe for kids?

Infants are extremely vulnerable to Tin (inorganic) due to immature blood-brain barrier, higher gastrointestinal absorption rates (40-50% vs 3-10% in adults), and rapidly developing neurology. Even trace exposure can cause irreversible neurodevelopmental harm.

What products contain tin (inorganic)?

Tin (inorganic) appears in: tin cans (Consumer products); solder (Consumer products); canned food migration (Food chain).

What should I do if my child is exposed to tin (inorganic)?

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.

See Tin (inorganic) in the baby app

Look up products containing tin (inorganic), compare to alternatives, and explore the full data record.

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Sources (1)
  1. PubChem (2026) — database

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 →