Birch Tar Oil Rectified – Smoky Leather Aroma Chemical

Birch Tar Oil Rectified is a powerful natural-origin fragrance material with an intense smoky, burnt-wood, leathery, tarry and phenolic character. It is primarily used as a base-note modifier to create leather, smoky wood, tobacco, burnt wood and rugged masculine fragrance effects.

For professional fragrance applications, rectified/purified Birch Tar Oil should be used rather than crude Birch Tar Oil. IFRA specifically prohibits crude birch wood pyrolysates as fragrance ingredients and permits only rectified/purified materials meeting its PAH specifications.

Technical Details

Commercial rectified Birch Tar specifications describe an orange-to-dark-brown liquid with a tar/smoke odour; because it is a complex natural mixture, a single molecular formula or molecular weight is not applicable.

Fragrance Profile

Birch Tar Oil is an extremely powerful material and should normally be used at low levels.

Odour Character

• Smoky
• Burnt wood
• Leather
• Tarry
• Phenolic
• Dry
• Sweet-smoky
• Slightly medicinal
• Charred wood

Its principal perfumery value is the creation of smoky leather and burnt-wood effects.

Common Applications

Fine Fragrance & Perfume

Used in:

• Leather perfumes
• Smoky fragrances
• Tobacco accords
• Oud-style compositions
• Woody fragrances
• Masculine fragrances
• Vintage/chypre effects
• Amber-leather accords

Attar & Concentrated Perfume

Useful as a powerful smoky-leather modifier in concentrated perfume and attar compositions.

Agarbatti & Incense

Can be used in selected premium incense, agarbatti and dhoop compounds when a smoky, burnt-wood or leather effect is required.

Dhoop & Dhoop Cones

Useful for creating smoky, woody and traditional burning-type fragrance effects.

Home Fragrance

Can contribute smoky/woody character to selected candles, room fragrances and air-care compositions, subject to applicable restrictions.

Key Benefits

• Extremely powerful smoky character
• Strong leather effect
• Excellent burnt-wood modifier
• Useful for tobacco and rugged woody accords
• Provides depth to base notes
• Suitable for niche and masculine perfumery
• Useful in premium incense compositions
• Works with woody, amber, leather and musk materials

Professional Blending

Birch Tar Oil Rectified works particularly well with:

Birch Tar Rectified • Cade Oil Rectified • Guaiacwood • Cypriol • Cedarwood • Vetiver • Patchouli • Labdanum • Styrax • Castoreum-type bases • Leather bases • Oud materials • Amber materials • Musk materials

It is best treated as a powerful accent/base modifier, not as the main body of a perfume.

Formulation Tip

Start very low and increase gradually during evaluation. A small amount can dramatically change the character of a fragrance.

Important Regulatory Information

Do not list or sell crude Birch Tar Oil as an unrestricted perfume ingredient.

The current IFRA standard covers Birch wood pyrolysate under CAS 8001-88-5 and several related CAS numbers. It distinguishes prohibited crude material from compliant rectified/purified Birch Tar Oil and specifies PAH controls.

For a commercial Raiko product page, I recommend specifically stating:

“Rectified/Purified Grade – Use only according to applicable IFRA standards and supplier documentation.”

The actual permitted concentration depends on the finished-product category and the specification of the supplied material, so the product’s current IFRA certificate should be checked before publishing a universal dosage limit.

Storage

Store in a tightly closed container in a cool, dry and well-ventilated area. Protect from direct sunlight, excessive heat and contamination.

Handling & Safety

For professional and industrial fragrance formulation use only. Handle according to the product SDS, COA and current IFRA documentation. Avoid direct contact with skin and eyes.