Skip to content

CAS 15534-95-9, EC 239-579-1

Is 1,3-Bis (hydroxymethyl)imidazolidine-2-thione banned where you sell?

Also listed as Dimethylol ethylene thiourea, 1,3-비스(하이드록시메칠)이미다졸리딘-2-치온 (다만, 에어로졸(스프. 3 markets have rules for it. Selling something that contains it? Check it free, no account needed.

  • Free
  • No account needed
  • The law behind every rule

Status

Status by market

Banned, limited, needs a warning, or no rule we know of. US states also follow federal rules, shown in their own row.

Market
Status
Requirement, dates and source
No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

Not covered

We hold no rules for this market.

Not covered

We hold no rules for this market.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

Not covered

We hold no rules for this market.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

Not covered

We hold no rules for this market.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

Not covered

We hold no rules for this market.

Not covered

We hold no rules for this market.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

No known rule

We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.

Limited

For Hair care and colour: Label required. In force since 11 Jul 2013.

“Contains Dimethylol ethylene thiourea”
Annex III entry 44 (wording) (excerpt) · fetched 2026-10-09European Commission / Publications Office (CELLAR): Reg. (EC) 1223/2009 Annexes II-VI(opens in a new tab)

For Nail products: Limit 2 % (content basis). In force since 11 Jul 2013.

From the consolidated text: (b) Nail- products · (b) 2 %

For Hair care and colour: Limit 2 % (content basis). In force since 11 Jul 2013.

From the consolidated text: 1,3-Bis (hydroxymethyl)imidazolidine-2-thione · Dimethylol ethylene thiourea · 15534-95-9 · 239-579-1 · (a) Hair- products · (a) 2 %

Limited

For Hair care and colour: Label required. In force, start date unknown.

“Contains Dimethylol ethylene thiourea”
Annex III entry 44 (wording) (excerpt) · fetched 2026-10-10The National Archives (legislation.gov.uk): Reg. (EC) 1223/2009 (retained) Annexes II-VI(opens in a new tab)

For Nail products: Limit 2 % (content basis). In force, start date unknown.

From the official list: (b) Nail- products · (b) 2 %

For Hair care and colour: Limit 2 % (content basis). In force, start date unknown.

From the official list: 1,3-Bis (hydroxymethyl)imidazolidine-2-thione · Dimethylol ethylene thiourea · 15534-95-9 · 239-579-1 · (a) Hair- products · (a) 2 %

No known rule

We have no rule for it here. Our coverage starts 12 Jul 2024, and this doesn't mean it's allowed.

Banned

For Hair care and colour: Banned. In force under the consolidated notice effective 18 Mar 2026; earlier versions are not in our data.

From the official list: 1,3-비스(하이드록시메 · 두발용 제품류 · 기타 · 15534-95-9

For Hair care and colour: Limit 2 % (content basis). In force under the consolidated notice effective 18 Mar 2026; earlier versions are not in our data.

From the official list: 1,3-비스(하이드록시메 · 두발용 제품류 · 기타 · 15534-95-9

California

Prop 65 listing

California's list of chemicals known to cause cancer or reproductive harm.

Not on the Prop 65 list in our data

Not on California's list when we last checked it.

Groups

Group memberships

Groups that name this substance. Markets define groups like PFAS in different ways.

Not named in any group

No group we track names this substance. Groups like PFAS are defined by chemical structure and don't list members, so whether it's in one depends on your product.

Records

Recalls and alerts

Recalls, safety alerts and Prop 65 notices that name 1,3-Bis (hydroxymethyl)imidazolidine-2-thione, with a link to the original. A Prop 65 notice is a claim by the sender, not a ruling.

No records in our feeds

No Prop 65 notice, EU Safety Gate alert or CPSC recall has named 1,3-Bis (hydroxymethyl)imidazolidine-2-thione since January 2023. Other agencies may still have acted.

See also

Related

Alerts

Get an email when these rules change.

Check a product free, no account needed. Save it, and you see when a rule that affects it changes, and Team emails you the day it does.

Check a productStart a workspace

Free for 10 products. Email alerts from $39 a month. See pricing