Is 2-Ethylhexyl diphenyl phosphate (EHDPP) safe for babies and kids?
Elevated risk for kidsInfants are more vulnerable to 2-Ethylhexyl diphenyl phosphate (EHDPP) 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 2-ethylhexyl diphenyl phosphate (ehdpp)?
The IUPAC name is 2-ethylhexyl diphenyl phosphate.
Also known as: 2-ethylhexyl diphenyl phosphate, Octicizer, Phosphoric acid, 2-ethylhexyl diphenyl ester, Santicizer 141.
- IUPAC name
- 2-ethylhexyl diphenyl phosphate
- CAS number
- 1241-94-7
- Molecular formula
- C20H27O4P
- Molecular weight
- 362.4 g/mol
- SMILES
- CCCCC(CC)COP(=O)(OC1=CC=CC=C1)OC2=CC=CC=C2
- PubChem CID
- 14716
Risk for babies
Elevated riskInfants are more vulnerable to 2-Ethylhexyl diphenyl phosphate (EHDPP) 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.
Risk for pregnant and nursing people
Elevated riskPregnancy alters the metabolism and distribution of 2-Ethylhexyl diphenyl phosphate (EHDPP), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.
Suspected reproductive toxicant (GHS H361) or suspected endocrine disruptor. Precautionary approach warranted. Animal studies or limited human data suggest developmental toxicity potential.
Regulatory consensus
3 regulatory and scientific bodies have classified 2-Ethylhexyl diphenyl phosphate (EHDPP). The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| IARC | 2022 | Not evaluated by IARC — 2-ethylhexyl diphenyl phosphate (EHDPP) is an aryl organophosphate ester flame retardant and plasticizer with documented thyroid axis disruption in aquatic organisms; ECHA REACH evaluation; identified as a substance of very high concern (SVHC) candidate or subject to authorisation under REACH due to endocrine disrupting properties; no IARC or EPA carcinogenicity classification | |
| EPA CTX / Genetox | — | Genotoxicity: negative (Ames: negative, 0 positive / 4 negative reports) | |
| EPA CTX / Genetox | — | Genotoxicity: negative (Ames: negative, 0 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 2-ethylhexyl diphenyl phosphate (ehdpp)
- 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 2-Ethylhexyl diphenyl phosphate (EHDPP):
-
Inherently flame-resistant materials (wool, modacrylic, Nomex)
Trade-offs: Higher material cost. Limited color/texture options.Relative cost: 1.2-2×
-
Barrier fabric technology
Trade-offs: Adds manufacturing step and costRelative cost: 1.2-2×
Frequently asked questions
Is 2-ethylhexyl diphenyl phosphate (ehdpp) safe for kids?
Infants are more vulnerable to 2-Ethylhexyl diphenyl phosphate (EHDPP) 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 2-ethylhexyl diphenyl phosphate (ehdpp)?
2-Ethylhexyl diphenyl phosphate (EHDPP) 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 2-ethylhexyl diphenyl phosphate (ehdpp)?
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 2-ethylhexyl diphenyl phosphate (ehdpp)?
2-Ethylhexyl diphenyl phosphate (EHDPP) has been classified by 3 agencies including 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 2-Ethylhexyl diphenyl phosphate (EHDPP) in the baby app
Look up products containing 2-ethylhexyl diphenyl phosphate (ehdpp), compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (1)
- EHDPP 2-Ethylhexyl Diphenyl Phosphate Aryl OPE Flame Retardant; ECHA REACH CoRAP Endocrine Disruptor Thyroid Axis; TPO Inhibition T4 Reduction Zebrafish Amphibian; Log Kow 5.7 Bioaccumulation Fish Marine Mammals; Breast Milk Serum Human Biomonitoring; SVHC Article 57f Environment; Octicizer; TPhP Triphenyl Phosphate Class; Cholinesterase Aryl OPE Potency (2022) — 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 →