Is PBTC 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 PBTC, 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 pbtc?
The IUPAC name is 2-phosphonobutane-1,2,4-tricarboxylic acid.
Also known as: 2-phosphonobutane-1,2,4-tricarboxylic acid, phosphonobutane tricarboxylic acid.
- IUPAC name
- 2-phosphonobutane-1,2,4-tricarboxylic acid
- CAS number
- 37971-36-1
- Molecular formula
- C7H11O9P
- Molecular weight
- 274.13 g/mol
- SMILES
- CCC1C2CC3C4C5(CC(C2C5C(=O)OCCl)N3C1O)C6=CC=CC=C6N4C
- PubChem CID
- 92090
Risk for babies
Context-dependentPregnancy alters the metabolism and distribution of PBTC, 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.
Risk for pregnant and nursing people
Context-dependentPregnancy alters the metabolism and distribution of PBTC, 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.
Regulatory consensus
2 regulatory and scientific bodies have classified PBTC. The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| EU_CLP | — | Acute Tox. 4 (Oral) | H302: Harmful if swallowed |
| EPA | — | — | Registered industrial biocide and water treatment chemical |
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 pbtc
- cooling water systems
- industrial water treatment
- scale inhibition
Safer alternatives
Lower-risk approaches that achieve a similar outcome to PBTC:
-
Organic acid-based inhibitors (e.g., sebacic acid derivatives)
Trade-offs: Alternative approach; specific tradeoffs depend on application context, scale, and regulatory requirements. Full hazard assessment of alternative recommended before adoption to avoid regrettable substitution.Relative cost: 2-5× conventional
-
Silicate-based corrosion inhibitors for closed systems
Trade-offs: Removes 95-99% of dissolved contaminants including metals, PFAS, nitrates; wastes 2-4 gallons per gallon produced (improving with newer systems); removes beneficial minerals; $0.05-0.25/gallon; requires pre-treatment for longevity.Relative cost: 1.2-2×
-
Molybdate-based alternatives to chromate inhibitors
Trade-offs: Removes 95-99% of dissolved contaminants including metals, PFAS, nitrates; wastes 2-4 gallons per gallon produced (improving with newer systems); removes beneficial minerals; $0.05-0.25/gallon; requires pre-treatment for longevity.Relative cost: 1.2-2×
Frequently asked questions
What products contain pbtc?
PBTC appears in: cooling water systems; industrial water treatment; scale inhibition.
See PBTC in the baby app
Look up products containing pbtc, compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (2)
- PubChem Compound CID 92090 — database
- ATSDR Toxicological Profile — CAS 37971-36-1 — 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 →