Baby Safety / Compounds / Pentachlorophenol (PCP)

Is Pentachlorophenol (PCP) safe for babies and kids?

Elevated risk for kids

Infants are more vulnerable to Pentachlorophenol (PCP) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What is pentachlorophenol (pcp)?

The IUPAC name is 2,3,4,5,6-pentachlorophenol.

Also known as: 2,3,4,5,6-pentachlorophenol, pentachlorophenol, Chlorophen, Lauxtol.

IUPAC name
2,3,4,5,6-pentachlorophenol
CAS number
87-86-5
Molecular formula
C6HCl5O
Molecular weight
266.3 g/mol
SMILES
C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)O
PubChem CID
992

Risk for babies

Elevated risk

Infants are more vulnerable to Pentachlorophenol (PCP) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

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

High risk

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

Known reproductive toxicant (GHS H360) or confirmed endocrine disruptor. Placental transfer is presumed. Fetal exposure during critical developmental windows may cause structural malformations, growth restriction, or functional deficits.

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

Regulatory consensus

16 regulatory and scientific bodies have classified Pentachlorophenol (PCP). The classifications differ — that's the data.

AgencyYearClassificationNotes
EPA CTX / IRISLikely to be carcinogenic to humans
EPA CTX / NTP RoCReasonably Anticipated to be a Human Carcinogen
EPA CTX / IARCGroup 1 - Carcinogenic to humans
EPA CTX / EPA OPPGroup B2 Probable Human Carcinogen
EPA CTX / CalEPAKnown human carcinogen
EPA CTX / GenetoxGenotoxicity: negative (Ames: negative, 3 positive / 7 negative reports)
EPA CTX / GenetoxGenotoxicity: negative (Ames: negative, 3 positive / 7 negative reports)
EPA CTX / Skin-EyeEye Irritation: Eye Irrit. 2 (score: high)
EPA CTX / Skin-EyeSkin Irritation: Skin Irrit. 2 (score: high)
EPA CTX / Skin-EyeEye Irritation: Serious eye damage/eye irritation - Category 2B (score: moderate)
EPA CTX / Skin-EyeEye Irritation: Category 2A-2B (score: high)
EPA CTX / Skin-EyeSkin Irritation: Category 2 (score: high)
EPA CTX / Skin-EyeEye Irritation: Eye Irrit. 2 (score: high)
EPA CTX / Skin-EyeSkin Irritation: Skin Irrit. 2 (score: high)
EPA CTX / Skin-EyeEye Irritation: Category 6.4A (Category 2A) (score: high)
EPA CTX / Skin-EyeSkin Irritation: Category 6.3A (Category 2) (score: high)

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 pentachlorophenol (pcp)

  • Industrial FacilitiesManufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational EnvironmentsFactories, Warehouses, Transportation vehicles

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Pentachlorophenol (PCP):

  • Physical/mechanical pest control (IPM)
    Trade-offs: More labor-intensive. May not be sufficient for severe infestations.
    Relative cost: Variable; lower long-term

Frequently asked questions

Is pentachlorophenol (pcp) safe for kids?

Infants are more vulnerable to Pentachlorophenol (PCP) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What products contain pentachlorophenol (pcp)?

Pentachlorophenol (PCP) 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 pentachlorophenol (pcp)?

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 pentachlorophenol (pcp)?

Pentachlorophenol (PCP) has been classified by 16 agencies including EPA CTX / IRIS, EPA CTX / NTP RoC, EPA CTX / IARC, EPA CTX / EPA OPP, EPA CTX / CalEPA, 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 Pentachlorophenol (PCP) in the baby app

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

Open in baby View raw API data

Sources (1)

  1. IARC Monographs Volume 117: Some Chemicals Used as Solvents and in Polymer Manufacture — Pentachlorophenol Group 1 (non-Hodgkin lymphoma; hepatocellular carcinoma); wood preservative occupational exposure; TCHQ genotoxic metabolite (2019) (2019) — 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 →