Following on from our earlier post on HSE’s first tranche of SVHC additions under the new fast-tracked alignment process: the fifteen substances are now confirmed, and it’s worth setting out the full list. All fifteen were already on ECHA’s Candidate List — added there between January 2021 and June 2025 — and were brought onto the UK REACH Candidate List on 15 June 2026, taking the UK list to 224 entries. This is a catch-up and alignment step, not the identification of fifteen substances that are new internationally.
Why this matters
Candidate List inclusion isn’t a ban on manufacture, supply or use by itself, but it’s an important regulatory marker. For articles containing any of these substances above 0.1% weight by weight, Article 33 information duties may apply — including communicating to recipients and responding to consumer requests within 45 days. Where an SVHC is present in articles above 0.1% w/w and the total quantity exceeds one tonne per producer or importer per year, an Article 7(2) notification assessment should also be carried out, subject to the available exemptions.
If you supply both Great Britain and the EU/EEA, keep UK and EU compliance records coordinated but separate — the legal inclusion dates differ, even though the substances themselves are the same.
The 15 new UK REACH Candidate List entries
UK inclusion date for all fifteen: 15 June 2026. The “likely uses” column below is deliberately practical and indicative — it’s meant to help focus supplier enquiries and BOM reviews, not to prove a substance is present in any particular product.
| No. | Substance / group entry | EC / CAS | SVHC reason | EU inclusion | Likely uses / where to look |
|---|---|---|---|---|---|
| 1 | 2,2′,6,6′-tetrabromo-4,4′-isopropylidenediphenol (TBBPA) | EC 201-236-9 CAS 79-94-7 |
Carcinogenic — Art. 57(a) | 17 Jan 2023 | Reactive or additive flame retardant in epoxy resins and plastics. Check printed circuit boards, electronic/electrical assemblies, polymer housings and flame-retarded resin systems. |
| 2 | BMP / TBNPA / 2,3-DBPA brominated group entry | Group entry Key CAS: 3296-90-0; 36483-57-5; 1522-92-5; 96-13-9 |
Carcinogenic — Art. 57(a) | 8 Jul 2021 | Brominated flame retardants and chemical intermediates used in resins, polymers and speciality flame-retardant systems. Check older polymer formulations, coatings and legacy components. |
| 3 | 2-(4-tert-butylbenzyl)propionaldehyde and its individual stereoisomers (BMHCA / Lysmeral) | Group entry Key CAS: 80-54-6 |
Toxic for reproduction — Art. 57(c) | 8 Jul 2021 | Fragrance ingredient historically used in perfumes, cosmetics, soaps, detergents, cleaners and fragranced industrial products. Check legacy formulations and imported mixtures. |
| 4 | 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(morpholin-4-yl)phenyl]butan-1-one | EC 438-340-0 CAS 119344-86-4 |
Toxic for reproduction — Art. 57(c) | 23 Jan 2024 | Photoinitiator for UV/LED-curable inks, coatings, adhesives, photoresists and additive-manufacturing resins. Check printed materials, specialist coatings and cured polymer systems. |
| 5 | 6,6′-di-tert-butyl-2,2′-methylenedi-p-cresol (DBMC) | EC 204-327-1 CAS 119-47-1 |
Toxic for reproduction — Art. 57(c) | 17 Jan 2022 | Antioxidant or stabiliser in rubber, plastics, adhesives, lubricants and other polymer or petroleum-based formulations. Check elastomers, seals, compounds and maintenance chemicals. |
| 6 | 6-[(C10-C13)-alkyl-(branched, unsaturated)-2,5-dioxopyrrolidin-1-yl]hexanoic acid (Tetra-PSCA) | EC 701-118-1 CAS 2156592-54-8 |
Toxic for reproduction — Art. 57(c) | 21 Jan 2025 | Speciality additive associated with lubricant, metalworking and corrosion-inhibiting formulations. Check additive packages, oils, greases, fluids and specialist maintenance products. |
| 7 | Barium diboron tetraoxide | EC 237-222-4 CAS 13701-59-2 |
Toxic for reproduction — Art. 57(c) | 17 Jan 2023 | Speciality borate used in glass, ceramics, frits, glazes, enamels and some electronic or technical materials. Check glass/ceramic components and high-temperature processed materials. |
| 8 | Bis(2-(2-methoxyethoxy)ethyl)ether (Tetraglyme) | EC 205-594-7 CAS 143-24-8 |
Toxic for reproduction — Art. 57(c) | 19 Jan 2021 | High-boiling solvent used in chemical synthesis, process chemistry, electrolytes and some battery or electronic applications. Check laboratory/process chemicals and energy-storage supply chains. |
| 9 | Bis(alpha,alpha-dimethylbenzyl) peroxide | EC 201-279-3 CAS 80-43-3 |
Toxic for reproduction — Art. 57(c) | 27 Jun 2024 | Organic peroxide used as a polymerisation initiator and crosslinking/curing agent, particularly in rubber, cable compounds, elastomers and plastics. |
| 10 | Dioctyltin dilaurate and related dioctyltin fatty-acid derivatives | Group entry Key CAS: 3648-18-8; 91648-39-4 |
Toxic for reproduction — Art. 57(c) | 19 Jan 2021 | Organotin catalysts and stabilisers used in silicone, polyurethane, sealants, adhesives, coatings, esterification processes and some PVC systems. Check sealants, potting compounds and cured elastomers. |
| 11 | Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO) | EC 278-355-8 CAS 75980-60-8 |
Toxic for reproduction — Art. 57(c) | 14 Jun 2023 | Photoinitiator in UV-curable coatings, inks, varnishes, adhesives, printing systems, dental materials and additive-manufacturing resins. |
| 12 | N-(hydroxymethyl)acrylamide | EC 213-103-2 CAS 924-42-5 |
Carcinogenic & mutagenic — Art. 57(a)/(b) | 10 Jun 2022 | Reactive monomer/crosslinker used in polymer resins, textile finishes, paper treatments, coatings, adhesives and latex formulations. Check treated fabrics, papers and resin systems. |
| 13 | Orthoboric acid, sodium salt | Group entry Several sodium borate identities |
Toxic for reproduction — Art. 57(c) | 8 Jul 2021 | Sodium borates used in glass, ceramics, detergents, fluxes, flame-retardant formulations, wood treatments and industrial process mixtures. Check borate-containing formulations and technical glass. |
| 14 | Tris(2-methoxyethoxy)vinylsilane | EC 213-934-0 CAS 1067-53-4 |
Toxic for reproduction — Art. 57(c) | 17 Jan 2022 | Silane coupling, adhesion-promoting or crosslinking agent used in sealants, adhesives, coatings, filled polymers and surface-treatment systems. |
| 15 | Reactive Brown 51 | EC 466-490-7 No CAS listed |
Toxic for reproduction — Art. 57(c) | 25 Jun 2025 | Reactive dye used primarily for cellulose textiles, particularly cotton, and in associated dye formulations. Check coloured textiles, imported fabrics and wet-processing chemical supply chains. |
Key actions for product stewards
- Update screening lists with all 15 entries, including group members and stereoisomers. Search by EC number, CAS number and synonym, not substance name alone — several of these have multiple identities.
- Re-screen BOMs and material declarations, prioritising electronics, printed circuit boards, polymers, rubber, sealants, adhesives, coatings, inks, UV-cured materials, lubricants, technical glass/ceramics, textiles and fragranced products. Legacy and imported parts tend to have the biggest data gaps.
- Go back to suppliers with specific questions — ask directly whether any of these 15 entries are present above 0.1% w/w in any article, including constituent parts of a complex object, not just the finished product.
- Check both Article 33 and Article 7(2) duties wherever a substance is confirmed or reasonably suspected to be present.
- Log this as an early warning signal, not just a one-off task — record affected substances on product and programme risk registers, and keep an eye on substitution feasibility and sole-source dependencies.
How we can help
We’re helping clients screen BOMs and supplier declarations against this exact list, and build the evidence pack that shows which market, list version and effective date was used for each assessment. If you’d like us to run your product range against these 15 entries, get in touch.
Want help applying this to your own product range?
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