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Boric acid (H3BO3)

CAS 10043-35-3

Also registered as 4 other CAS numbers

11113-50-1 · 12795-04-9 · 30698-98-7 · 2253722-08-4

Boric acid (H3BO3) chemical structure

Concern score

Not assessed — no hazard data yet.

Boric acid (H3BO3) in plain language

What it is

Also known as Boric acid · Boracic acid · Boric acid (BH3O3) · Boric acid (h(sub 3)BO(SUB 3)) · NCI-C56417 · Basilit B

Show all 37 names

Boric acid (B(OH)3) · Borofax · Boron hydroxide · Boron trihydroxide · Borsaeure · Borsaure · Bushwhacker · Dr.'s 1 Flea Terminator DFPBO · Dr.'s 1 Flea Terminator DT · E-284 · Entimaden · Flea Prufe · Ins NO.284 · INS-284 · Niban · Nitrate balancer · Orthoboric acid · Optibor TP · Orthoboric acid (B(OH)3) · Orthoboric acid (H3BO3) · Orthoborsaeure · Super Flea Eliminator · Three Elephant · Trihydroxyborane · Trihydroxyborone · boric acid (1 - 5%) · boric acid (5-10%) · boric acid (wt % not given by mfr) · boric acid cas#10043-35-3 · boric acid(5-10%) (cas #10043-35-3) · Boricum acidum

What it does

Used in consumer products as a chelating agent, a pH adjuster and a stabiliser.

  • Chelating agent
  • pH adjuster
  • Stabiliser
  • Antimicrobial
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Boric acid (H3BO3) appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Pharma
  • Food
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 860 composition records across product categories including Construction and building materials, Laboratory supplies, Food and drug. EPA CPDat classifies this chemical for functional uses including pH regulating agent, Biocide, Stabilizing agent.
    • EPA CPDat observed this chemical in 860 composition records across product categories including Construction and building materials, Laboratory supplies, Food and drug. EPA CPDat classifies this chemical for functional uses including pH regulating agent, Biocide, Stabilizing agent.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Boric acid (H3BO3). These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    No JECFA evaluation on file.

  • EFSA

    European Food Safety Authority

    No EFSA opinion on file.

Evidence & sources

No graded research studies for Boric acid (H3BO3) yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated may-21-2015

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Boric acid (H3BO3) in a product composition. These are source records, not Greenveil catalog products.

Source records

860

Named organisations

6

Construction and building materialsLaboratory suppliesFood and drugSpecialty occupational productsPesticidesIndustrial products

Typical roles

Chelating agentpH adjusterStabiliserAntimicrobial
See products using Boric acid (H3BO3) →

Catalog

Found in these products

Their ingredient lists include Boric acid (H3BO3); each product's own rating depends on its whole formula, so it is shown on the product page, not here.