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UK Proposes to List Three Reproductive Toxic Substances under UK REACH Authorization List

Nov 13, 2025
UK
UK REACH
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On 4 November 2025, the UK Health and Safety Executive (HSE) proposed adding three reproductive toxic substances to the Authorization List (Annex 14) of the UK Registration, Evaluation, Authorization and Restriction of Chemicals (UK REACH) regulation and initiated a public consultation. This marks the first time the UK has proposed adding substances to the authorization list since its departure from the EU ("Brexit").

Material name

EC number

CAS Registry Number

SVHC properties

Latest Application Date (LAD)

sunset date

DOTE2-ethylhexyl 10-ethyl-4,4-dioctyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecanoate

239-622-4

15571-58-1

Reproductive toxicity 

(Article 57c)

the date of inclusion in Annex 14

Plus 18, 21 or 24 months

Latest application date plus 18 months

Reaction mass of DOTE and MOTE

-

-

Reproductive toxicity (Article 57c)

the date of inclusion in Annex 14

Plus 18, 21 or 24 months

Latest application date plus 18 months

Tetraethyllead

201-075-4

78-00-2

Reproductive toxicity (Article 57c)

the date of inclusion in Annex 14

Plus 18, 21 or 24 months

Latest application date plus 18 months

Second Batch of Potential Regulatory Substances Disclosed

Material name

EC number

CAS Registry Number

Reaction products of 1,3,4- thiadiazolidine-2,5-dithione, formaldehyde and 4- heptylphenol, branched and linear (RP-HP) [with ≥ 0.1% w/w 4-heptylphenol, branched and linear]

No single EC number. Representative identifiers include 939-460-0 and 300-298-5.

No single CAS number. Representative identifiers include 1471311-26-8 and 93925-00-9

4,4’-bis(dimethylamino)-4”-(methylamino)trityl alcohol [with ≥ 0.1% of Michler's ketone (EC No. 202-027-5) or Michler's base (EC No. 202-959-2)],

209-218-2

561-41-1

The feedback period closes on 4 February 2026. Companies operating in the UK must submit localized data on the substances’ current uses in the UK, exposure scenarios, possibilities for exemptions, and feasibility of alternatives.

 

Further Information

 

HSE

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