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Annex II Entry 1428 CMR30/07/2020

Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3]

Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3] is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.

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Prohibited substance— Annex II, EU Regulation 1223/2009
Entry: 1428
CMR

Chemical identity and properties

PubChem 2D chemical structure for CAS 15843-02-4
CAS 15843-02-4CAS 3349-06-2PubChem CID 27506

Formic acid, nickel salt

Nickel formate is an odorless green solid. Sinks in and mixes with water. (USCG, 1999) — CAMEO Chemicals

IUPAC name
nickel(2+) diformate
Molecular formula
C2H2NiO4
Molecular weight
148.73 g/mol
Exact mass
147.930650 Da
Topological polar surface area
80.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
3
Defined stereocentres
0

Also known as

NICKEL FORMATENickelous formateY4YT27N8QNAI3-26109RefChem:165667(formyloxy)nickelio formate239-946-6Nickel(II) formate
13 more reported names
3349-06-2Nickel diformatenickel(2+);diformateFormic acid, nickel(2+) saltFormic acid, nickel(2+) salt (2:1)3349-06-2; 15694-70-9(dihydrate)UNII-Y4YT27N8QNHSDB 1191EINECS 239-946-6NICKEL FORMATE [MI]NICKEL FORMATE [HSDB]EINECS 222-101-0FORMIC ACID NICKEL(2+) SALT (2:1)
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 68134-59-8
CAS 68134-59-8PubChem CID 176264

Formic acid, copper nickel salt (1:?:?)

IUPAC name
copper;nickel(2+);formate
Molecular formula
CHCuNiO2+3
Molecular weight
167.26 g/mol
Exact mass
165.862593 Da
Topological polar surface area
40.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
3
Defined stereocentres
0

Also known as

Copper nickel formateFormic acid, copper nickel saltEINECS 268-755-0RefChem:600313268-755-0ZIWUNYMPOCRTJL-UHFFFAOYSA-M
Open full PubChem recordPubChem annotations3D structure image

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Record details

Chemical name

Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3]

Chemical / IUPAC name

Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3]

Regulatory information

Regulation

(EU) 2019/831

See every entry this act set

CMR

CategoryCarcinogenicMutagenicReprotoxic
Cat. 1B✓—✓
Cat. 2—✓—

Key data

CAS
3349-06-2 [1] 15843-02-4 [2] 68134-59-8 [3]
EC
222-101-0 [1] 239-946-6 [2] 268-755-0 [3]
Annex
II
Entry number
1428

Direct matches are limited for this record, so nearby entries from Annex II are shown as well.

Annex II 1421
Nearby record in the same annex

Nickel matte

CAS: 69012-50-6
EC: 273-749-6

What Annex II means for Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3]

Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3] is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.

Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.

The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Verify this substance is absent from all raw materials and finished formulations.
  • Request absence confirmation or CoA from raw material suppliers.
  • Document the screening result in the Product Information File (PIF).
  • This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.

Frequently asked questions

Yes. Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3] is listed in Annex II of EU Cosmetics Regulation 1223/2009 and is prohibited as an intentionally added cosmetic ingredient. Article 17 provides a narrow exception for unintended small quantities that are technically unavoidable under good manufacturing practice, provided the product remains safe under Article 3.

CAS 3349-06-2 [1] 15843-02-4 [2] 68134-59-8 [3] is the unique numerical identifier assigned to Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3] by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3] has a CMR (carcinogenic, mutagenic or reprotoxic) classification under EU CLP Regulation. Under Article 15 of EU Cosmetics Regulation 1223/2009, CMR substances of category 1A or 1B are prohibited in cosmetics unless specifically permitted. Category 2 CMR substances may be used only if assessed safe by the SCCS. Always verify current annex status and any applicable derogations before use.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex II record Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3]

This page summarizes one Annex II record for Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3] from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex II conditions for Nickel diformate [1]; Formic acid, nickel salt [2]; Formic acid, copper nickel salt [3], but confirm any final regulatory decision against the current official annex wording and source files.

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