Birch Tar

Profile

Birch Tar is curated in this catalog as a smoky material, with a secondary reading of leathery.

On the strip it reads Smoky leather tar.

It is registered under CAS 8001-88-5.

No atmospheric boiling point is curated for Birch Tar, so its behaviour is read from curated diffusion and fixative values rather than from an estimated figure. On that reading it belongs to the base.

It evaporates slowly and anchors the drydown, still readable on skin hours after the top notes have gone.

The index runs from 0 for a material that barely leaves the strip to 1 for one that flashes off, and it is computed from boiling point and molecular weight. Inside a real formula the surrounding materials shift where the boundaries fall, so a material can read differently there than it does here.

Closest materials in the catalog

Scored on descriptor taxonomy and on measured physical behaviour, using the same ranking that drives the swap and reformulate tools. Price plays no part in the order.

• Pyralone - Givaudan leathery base 87%
• Cade EO smoky base 79%
• Vetiveryl Acetate smoky wood base 59%
• Dihydrocoumarin warm sweet base 52%
• Castoreum Absolute leathery base 50%
• Hay Absolute (France) hay-like base 46%

Questions about Birch Tar

Compose with Birch Tar

Drop Birch Tar into a new formula and Fragrance Engine reads its role in the blend, the per-gram cost, and the lab sheet.