Compoatlas

C21-28 ALKANE

Official label name (INCIInternational name of cosmetic ingredients: the one printed on the pack. name, EU glossary of cosmetic ingredient names), No 4696

C21-28 ALKANE: Prohibited above an impurity threshold (Annex II, entry 779), under Regulation (EC) No 1223/2009. Good to know: classified carcinogenic (category 1B). Annexes of the Regulation consulted on 21 October 2026.

Who it concerns

What official classifications and rules say for each group. A classification describes the hazard of the pure substance, not the risk of a product that contains it, which depends on the dose and the exposure.

Prohibition or serious classificationThe text prohibits the substance for this use, or ranks it among the most serious hazards (known or presumed carcinogenic, mutagenic or reprotoxic, identified endocrine disruptor).Worth watchingThe text sets a condition or flags a hazard worth knowing: allergen, suspected effect, condition for children, hazard to the aquatic environment.For informationOfficial information with no condition on a finished product: warning to read, irritation of the pure substance.

  • Pregnancy and breastfeeding

    No classification harmonised by the European Union covers reproduction, the unborn child or breastfeeding for this substance. This does not mean it has been judged to have no effect during pregnancy.

  • Babies and children

    The Cosmetics Regulation sets no age-related condition for this ingredient.

  • Skin, eyes and allergies

    No official classification for sensitisation, irritation or eye damage, and no obligation to label it as an allergen.

  • Environment

    No harmonised classification as hazardous to the aquatic environment, and it is not on ECHAEuropean Chemicals Agency.'s Candidate List as an endocrine disruptor for the environment.

  • Read on the label

    The Cosmetics Regulation requires no warning to be printed for this ingredient.

In plain words

What it is used for

Functions declared by manufacturers:

Emollient (skin conditioning): softens and smooths the skin.

Skin conditioning: maintains the skin in good condition.

Functions declared in the CosIngThe European Commission's database of cosmetic ingredients. inventory. CosIng, inventory of cosmetic ingredients (INCI names, CAS, EC, functions), retrieved 21 October 2026.

Definitions of functions (decision repealed on 8 May 2020, cited for information). Decision 2006/257/EC, inventory of cosmetic ingredients (definitions of functions), retrieved 22 October 2026.

What the rules say

Prohibited only if the substance contains more than 3% (w/w) DMSO extract. This content does not appear on an ingredient list.

CosIng, Annex II of Regulation (EC) No 1223/2009 (prohibited substances), retrieved 21 October 2026, source updated 13 October 2026.

Hazard and risk

The CLPEU regulation that classifies chemicals by their hazards (EC No 1272/2008). Regulation classifies this substance as carcinogenic, category 1B (presumed effect, established mainly from animal studies).

This classification describes what the substance can cause (a hazard), not what happens when using a product (a risk): the risk depends on the dose, the form and the route of exposure (skin, inhalation, ingestion).

The CMRCarcinogenic, mutagenic (damages DNA) or toxic for reproduction. classification does not apply if the substance meets an impurity limit (CLP note L, for example less than 0.1% butadiene for butane): this cannot be checked on an ingredient list.

The text of the annexes

Prohibited above an impurity threshold

CosIng links the name C21-28 ALKANE to this entry. The cases of prohibition are explained above, in “In plain words”; the official title is given below.

Entry
Annex II, No 779
Substance
Distillates (petroleum), hydrotreated light paraffinic, if they contain > 3 % w/w DMSO extract
CAS
64742-55-8
EC
265-158-7

Regulation (EC) No 1223/2009, Annex II, entry 779. CosIng, Annex II of Regulation (EC) No 1223/2009 (prohibited substances), retrieved 21 October 2026, source updated 13 October 2026.

Entry from Regulation (EC) No 1223/2009, adopted on 30 November 2009.

SCCSEU Scientific Committee on Consumer Safety: it assesses cosmetic ingredients. opinions cited: Opinion concerning Chemical Ingredients in Cosmetic Products classified as Carcinogenic, Mutagenic or Toxic to Reproduction according to the Chemicals Directive 67/548/EECC; Opinion concerning Chemical Ingredients in Cosmetic Products classified as Carcinogenic, Mutagenic or Toxic to Reproduction according to the Chemicals Directive 67/548/EEC.

What has changed, and what will change

Dates of the texts that cover this ingredient. A text date may cover several substances: the details of each entry are below.

  1. Annex II, entry 779: introduced or replaced by Regulation (EC) No 1223/2009

  2. Annex II, entry 779: applies from this date

  3. CLP classification “Carc. 1B” applicable at the latest from this date (Regulation (EU) 2018/669)

Identity

CosIng identifier
86540
CAS (according to CosIng)
64742-55-8
EC (according to CosIng)
265-158-7
Declared functions
Skin conditioning: emollient, Skin conditioning

The CAS number cited by CosIng also covers 2 other INCI names: it designates a family of substances, not this ingredient alone.

Classified hazard (CLP Regulation)

The harmonised classification is the one set by the European Union for the whole Union. H codes refer to the hazard statements of Annex III of Regulation (EC) No 1272/2008.

Distillates (petroleum), hydrotreated light paraffinic; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly in the range of C15 through C30 and produces a finished oil with a viscosity of less than 100 SUS at 100 oF (19cSt at 40 oC). It contains a relatively large proportion of saturated hydrocarbons.]

Carcinogenicity, category 1B (Carc. 1B)

Hazard classes
Carcinogenicity, category 1B (Carc. 1B)
Hazard statements
H350
CLP notes
L

Annex VI, entry 649-468-00-3, linked by CAS 64742-55-8. Regulation (EC) No 1272/2008 (CLP), consolidated version, Annex VI table 3, retrieved 21 October 2026.

Entry introduced or replaced by Regulation (EU) 2018/669, applicable at the latest from 1 December 2019.

Elsewhere in the world

Information on other jurisdictions, with no effect on sale in France. What is covered, and what is not yet.

Comparison between countries

Most restrictive status in each country, and the maximum concentration cited. The details and the source of each rule follow.

CountryRuleMaximum concentration cited
European UnionProhibited above an impurity thresholdnot cited
United KingdomProhibited above an impurity thresholdnot cited
SwitzerlandEU Regulation appliesnot cited
United States (federal)No federal rule recordednot cited
JapanNo entry in the lists recordednot cited
South KoreaNo entry in the lists recordednot cited
ChinaProhibited differs from the EUnot cited
AustraliaNo entry in the lists recordednot cited
BrazilProhibited differs from the EUnot cited

United Kingdom (Great Britain)

  • Prohibited above an impurity threshold (Annex II)

Same entries as in the European Union. Their maximum concentrations are compared in the “Comparison between countries” table; other conditions (product types, warnings) may differ.

Annexes II to VI in force. United Kingdom, Annexes II to VI of Regulation (EC) No 1223/2009 as retained and amended, retrieved 21 October 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Northern Ireland applies EU law.

Switzerland

Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).

United States, federal rules

None of the integrated sections of the federal code (21 CFR 700.11 to 700.27 and 250.250) targets this name. The FDA does not publish a list of allowed ingredients.

United States, 21 CFR part 700 and section 250.250 (FDA rules on cosmetic ingredients), eCFR, retrieved 21 October 2026.

The eCFR is not an official legal edition of the Code of Federal Regulations.

China

  • Prohibited: 二甲基亚砜提取物含量大于 3%(w/w)的加氢轻石蜡(石油)馏分 (Distillates (petroleum), hydrotreated light paraffinic (CAS No. 64742-55-8), if they contain > 3 % (w/w) DMSO extract)

    表1 化妆品禁用原料目录 (prohibited substances, 2021年第74号), entry 531, page 附件2 (.doc) table row 531 ; TID reprint p.21.

China, NMPA catalogues of prohibited cosmetic ingredients (2021 No. 74, revised up to 2026), retrieved 22 October 2026.

Source: 国家药品监督管理局 (NMPA); plant catalogue as reprinted by the Trade and Industry Department of Hong Kong; table formatted by the publisher of this site.

Brazil

  • Prohibited: Destilados (petróleo), parafínicos leves tratados com hidrogênio, se contiverem > 3 % (m/m) de extrato DMSO

    RDC 529/2021, Anexo (prohibited substances), entry 779, page 27.

    Conditions, source text, in Portuguese

    N° UE: 779

Brazil, ANVISA resolutions RDC 529/2021, 528/2021, 600/2022 and 628/2022, retrieved 22 October 2026.

Source: ANVISA. Text of the adopted draft resolutions, as the Official Journal could not be accessed; the 2021 lists of prohibited substances and preservatives were compared with the copy of the published text distributed by the State of Paraná, the 2022 lists of UV filters and colorants were not.

Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 21 October 2026.