Baby Safety / Compounds / Polyhydroxybutyrate (PHB)

Is Polyhydroxybutyrate (PHB) safe for babies and kids?

Context-dependent for kids

(Babies-specific data is limited; this page draws from human pregnant context.) Pregnancy alters the metabolism and distribution of Polyhydroxybutyrate (PHB), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

What is polyhydroxybutyrate (phb)?

The IUPAC name is 3-hydroxybutanoic acid.

Also known as: 3-hydroxybutanoic acid, 3-hydroxybutyric acid, Butanoic acid, 3-hydroxy-, beta-Hydroxybutyric acid.

IUPAC name
3-hydroxybutanoic acid
CAS number
26063-00-3
Molecular formula
C4H8O3
Molecular weight
104.1 g/mol
SMILES
CC(CC(=O)O)O
PubChem CID
441

Risk for babies

Context-dependent

Pregnancy alters the metabolism and distribution of Polyhydroxybutyrate (PHB), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Risk for pregnant and nursing people

Context-dependent

Pregnancy alters the metabolism and distribution of Polyhydroxybutyrate (PHB), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

2 regulatory and scientific bodies have classified Polyhydroxybutyrate (PHB). The classifications differ — that's the data.

AgencyYearClassificationNotes
GHS—Skin hazard
GHS—Inhalation hazard

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 polyhydroxybutyrate (phb)

  • Industrial Facilities — Manufacturing plants, Waste treatment sites
  • Occupational Environments — Factories, Warehouses

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Polyhydroxybutyrate (PHB):

  • Safer process chemistry; Green chemistry alternatives; Exposure controls
    Trade-offs: Requires R&D investment to redesign synthesis routes; may reduce yield or throughput initially; long-term benefits include reduced waste treatment costs, regulatory compliance, and worker safety; 12 Principles of Green Chemistry framework available.
    Relative cost: 1.2-2×

Frequently asked questions

What products contain polyhydroxybutyrate (phb)?

Polyhydroxybutyrate (PHB) appears in: Manufacturing plants (Industrial facilities); Waste treatment sites (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).

See Polyhydroxybutyrate (PHB) in the baby app

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

Open in baby View raw API data

Sources (3)
  1. PubChem Compound CID 441 — database
  2. EPA CompTox Chemicals Dashboard — DTXSID101363371 — epa
  3. ATSDR Toxicological Profile — CAS 26063-00-3 — reference

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 →