Polybrominated biphenyls (PBB) (59536-65-1) — Where It's Found, EU RoHS Status, Consumer Guide

This page indexes Polybrominated biphenyls (PBB) (CAS 59536-65-1) on the EU Restriction of Hazardous Substances (RoHS) Directive. It is a factual surface of public regulatory data, not a safety verdict on any specific product. Always confirm the latest status on the regulator's own register (deep link below).

What is Polybrominated biphenyls (PBB)?

Polybrominated biphenyls (PBB) is also referred to as: pbb, polybrominated biphenyl, polybrominated biphenyls, hexabromobiphenyl, decabromobiphenyl.

This entry surfaces the public-register record for Polybrominated biphenyls (PBB), a chemical substance tracked by European Commission (RoHS Directive 2011/65/EU) on the EU Restriction of Hazardous Substances (RoHS) Directive. The page does not characterise typical exposure routes, doses, or clinical effects — those are the province of the EU RoHS hazard dossier itself, which is one click away.

CAS number

The Chemical Abstracts Service (CAS) registry number for this substance is 59536-65-1. CAS numbers are the universal identifier used by regulators, suppliers, and Safety Data Sheets worldwide — if you are reading a product's SDS, the CAS is the line to look at, not the trade name.

European Community (EC) inventory number: various.

Why it's on the EU RoHS list

According to European Commission (RoHS Directive 2011/65/EU), Polybrominated biphenyls (PBB) is listed under the RoHS restriction reason: Persistent; bioaccumulative; endocrine disruptor [source]

Maximum concentration value (%): 0.1.

Where it's commonly found

No products in our current index mention Polybrominated biphenyls (PBB), its aliases, or its CAS number in name or description. That can mean the substance is not declared in the listings we've ingested, is referenced under a different trade name, or is genuinely uncommon in consumer-product channels. The regulator's hazard record is still informative on its own — see Verify on EU RoHS below.

Regulatory status by jurisdiction

This page surfaces the EU Restriction of Hazardous Substances (RoHS) Directive entry for Polybrominated biphenyls (PBB). Each jurisdiction publishes its own register and its own basis-of-listing — these registers do not automatically mirror each other, so a substance can appear on one list while being unlisted on others:

• European Union: ECHA SVHC Candidate List (REACH Authorisation) + RoHS Annex II (electrical equipment) — ECHA register
• United States (California): Proposition 65 list (carcinogens + reproductive toxins) — OEHHA register
• WHO / International: IARC Monographs cancer-hazard classification — IARC classifications
• UN multilateral treaty: Stockholm Convention on Persistent Organic Pollutants — Stockholm POPs register

What this means for you

Presence on a regulatory list does not automatically mean a substance is banned. Many SVHC substances remain legal in consumer products subject to authorisation, concentration limits, or labelling requirements. Conversely, a substance not on a list is not automatically 'safe' — the absence may reflect un-assessed status rather than a negative finding.

This page indexes regulator data. It does not tell you whether to buy, keep, or discard a specific product, and it cannot estimate your personal exposure or risk. Those questions depend on the specific product, its concentration, your usage pattern, and your individual susceptibility — none of which are captured here.

If you have a concrete concern about a specific product or occupational exposure, please consult a qualified occupational health or environmental health specialist. Public-health hotlines in many jurisdictions (e.g. national Poison Control centres, EU REACH helpdesks, OSHA in the US) are free of charge.

Sources

Sources: ECHA · OEHHA · IARC · Stockholm Convention · EU RoHS · last fetched 2026-06-02 from EU RoHS.

Verify on EU RoHS → · ECHA → · OEHHA → · IARC →

This page indexes publicly-listed substance hazard data. It is NOT medical, legal, or safety advice. If you have specific exposure concerns, consult a healthcare professional or environmental health specialist. Regulator registers are amended over time — always verify the current status on the agency's own site before acting.

About this substance index

ProductGuru maintains a cross-referenced index of public chemical registers from major regulators: ECHA (EU REACH SVHC + Annex XIV Authorisation list), California OEHHA (Proposition 65), the World Health Organisation's International Agency for Research on Cancer (IARC Monographs), the Stockholm Convention on Persistent Organic Pollutants, and the EU Restriction of Hazardous Substances directive (RoHS, Annex II — applies to electrical and electronic equipment). Each substance × list combination has its own page on this site, with deep links straight back to the regulator's own register so every claim can be verified in one click.

The substance pages are designed for one specific need: a consumer reading a product label, ingredient list, or Safety Data Sheet who wants to know, in plain language, what a particular chemical name means and which regulators have published a hazard finding about it. We do not editorialise; we surface the regulator's wording, link to the primary source, and — where the substance name or CAS number happens to appear in product listings in our catalogue — show a small sample of those listings so you can inspect the context for yourself.

If a substance has been added to a register, removed from a register, or moved between annexes / hazard tiers since our last ingest, the regulator's own site is authoritative — please follow the Verify on … links. Registers are updated continuously; this page refreshes its ingest on a regular schedule and automatically picks up changes. If you spot a substance we have indexed incorrectly, the fastest path is the agency's own contact form.