Burnt Leather > Burnt > Leather > Smoky Woods

Birch tar oil (rectified)

Betula pubescens Ehrh.
Synonyms : Betula alba f. pubescens (Ehrh.) Bolzon // Betula alba subsp. alba L., 1753

Birch tar oil (rectified) (CAS N° 84012-15-7)

Company Ingredient Name ID Naturality Purity Latin name Treated part Geographical origin Certifications Comments MOQ
Quosentis logo
Huile essentielle de Bouleau rectifiée - 30 gr - - - - - - more -
Information Générales

General Presentation

  • CAS N° : : 84012-15-7

  • EINECS number : 281-660-9

  • FEMA number : Donnée indisponible.

  • Density :

  • Optical rotation : Lorem Ipsum

  • Allergens : This ingredient does not contain any allergen.

  • Refractive Index @20°C : Lorem Ipsum

  • Volatility : Base

  • Price Range : €€€

  • Appearance : Colorless liquid

Utilisation

Uses

Other comments :

In the traditional empyreumatic process of extraction, a birch powder is recovered from the oven, and can be used as a natural incense.

Stability :

The esters identified in this raw material can form their corresponding acid in stability tests
The terpenes identified in this raw material can polymerize when they are oxidized

Uses in perfumery :

Used in fine fragrance for leather, animalic, oud and chypre notes. Often used in very low dosage.

Major Components :

  • Salicylic Acid
  • Methyl Salicylate
  • Betulene
  • Betulenol

Map for Birch tar oil (rectified) (CAS N° 84012-15-7)​

Photo credits: ScenTree SAS

Botanique :

Tree belonging to the Betulaceae family and the Betula genus.

Chemotypes :

There are about 150 species of birch around the world. However, very few are used in perfumery. We can mention:
Betula alleghaniensis or Yellow Birch.
Betula nigra L. or Black Birch.
Betula Pubescens Ehrh. or Betula Alba. White birch. (Mostly used)

Extraction process :

The birch is a tree that generally grows on poor, often siliceous soils up to 2000 meters altitude, as well as in arctic regions, such as in Lapland. These trees can live for more than a hundred years. Its essential oil is obtained by dry distillation, which mean by pyrolysis of the wood. The wood is heated from 1112 to 1472 °F in an oven to evaporate the water and at the outlet, collect a viscous and dark mixture with a smoky smell : birch tar.
This strong heat forms benzopyrenes in the birch tar. These compounds are carcinogenic and must be removed. The tar is heated under vacuum to collect a distillate that contains 10 ppm rather than 1000 ppm of benzopyrenes. This is how the rectified essential oil of birch is obtained, almost colourless.

Geographic origin :

Data not available.

Utilisation

Regulations & IFRA

  • IFRA 51th : This ingredient is restricted by IFRA

  • Restriction type : PROHIBITION_SPECIFICATION

  • Cause of restriction : CARCINOGENICITY, GENOTOXICITY BY RELEASE OF POLYNUCLEAR HYDROCARBONS (PAH)

  • Amendment : 47

Annexe I :

Some regulated synthetic ingredients are found in nature and in certain proportions in natural ingredients. This presence in nature has to be taken into account when calculating limits of use recommended by the IFRA. In case you do not know these concentrations, you can use the ones estimated by the IFRA. Here they are :

List of regulated compounds contained in this ingredient
Regulated ingredient name CAS N° Estimated Concentration
2-Methoxy-4-propylphenol 2785-87-7 0,9

Comments :

Crude birch wood (bark) pyrolysates (oils) derived by pyrolysis (destructive distillation) of the wood or bark of Betula pubescens, Betula pendula, Betula lenta or Betula alba should not be used as a fragrance ingredient for any finished product application. Only rectified (purified) Birch tar oils being in compliance with the limitations for polynuclear aromatic hydrocarbons (PAH) established by this IFRA Standard should be used. Limit content of polynuclear aromatic hydrocarbons (PAH) resulting from the use of rectified oils according to Good Manufacturing Practice. Benzopyrene and 1,2-Benzanthracene are to be used as markers for PAH. If used alone or in combination with rectified Cade oil, rectified Styrax oil or rectified Opoponax oil, the total concentration of both of the markers should not exceed 1 ppb in the final product.

I am a chocolate hazelnut cookie. I come out of the oven. Impossible to refuse me.
This website is using cookies
Our website uses cookies for statistics, performance, and security. These anonymous data allow us to give you an optimal navigation experience. You can always disable cookies in your browser settings.