What is Brassylic Acid CAS 505-52-2?

Brassylic acid is tridecanedioic acid, a linear C13 dicarboxylic acid with the molecular formula C13H24O4 and molecular weight about 244.33 g/mol. It is supplied as a white crystalline solid or powder and is also known as 1,11-undecanedicarboxylic acid or tridecane-1,13-dioic acid.

Why is Brassylic Acid used to make macrocyclic musks such as ethylene brassylate?

Its linear C13 dicarboxylic acid structure is a natural building block for cyclization into ethylene brassylate and related macrocyclic musk molecules. The chain length and terminal carboxyl groups help form the large ring that gives the target musk its characteristic odor and stability.

How does the C13 chain affect polyamide, plasticizer, and lubricant performance?

The long odd-numbered aliphatic chain improves flexibility, low-temperature behavior, and water resistance compared with shorter or more rigid diacid monomers. This makes brassylic acid useful for specialty polyamides such as nylon 613 or nylon 1313, low-temperature plasticizers, and diester lubricants.

What physical form, melting range, and storage conditions are typical?

The commercial product is a white crystalline solid with a melting range commonly around 112-114 degrees C. It should be kept in tightly closed containers in a cool, dry, ventilated area away from strong oxidizers, excessive heat, moisture, and direct sunlight.

Brassylic Acid CAS 505-52-2

Brassylic Acid, also called tridecanedioic acid or 1,11-undecanedicarboxylic acid, CAS 505-52-2, is a linear C13 dicarboxylic acid supplied for macrocyclic musks, polyamides and specialty esters. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 505-52-2
Synonyms: Tridecanedioic acid, 1,11-Undecanedicarboxylic acid, Tridecane-1,13-dioic acid, n-Tridecanedioic acid
Einecs: 208-011-4
Molecular Formula: C₁₃H₂₄O₄
Grade: Industrial Grade / Fragrance Grade
Package: 25kg/drum or customized fiber drums

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Product Description

Brassylic Acid CAS 505-52-2 is tridecanedioic acid, a linear C13 dicarboxylic acid, with the formula C₁₃H₂₄O₄ and EINECS 208-011-4.

Synonyms: Tridecanedioic acid; 1,11-Undecanedicarboxylic acid; Tridecane-1,13-dioic acid; n-Tridecanedioic acid.

CAS: 505-52-2.

Molecular formula: C₁₃H₂₄O₄.

It is supplied as a white crystalline solid or powder.

Its melting range is commonly around 112-114 °C.

Its linear C13 dicarboxylic acid structure is a natural building block for cyclization into ethylene brassylate and related macrocyclic musks.

The chain length and terminal carboxyl groups help form the large ring that gives the target musk its characteristic odor and stability.

The long odd-numbered aliphatic chain improves flexibility, low-temperature behavior and water resistance in specialty polyamides, plasticizers and lubricants.

It is useful for specialty polyamides such as nylon 613 or nylon 1313, low-temperature plasticizers, and diester lubricants.

Brassylic acid derivatives are also used as emollients and conditioning ingredients in creams, lotions, shampoos and body washes.

The diacid can also be converted into surfactants, corrosion inhibitors, hot-melt adhesive components and specialty ester intermediates.

Store in tightly closed containers in a cool, dry, ventilated area away from strong oxidizers, excessive heat, moisture and direct sunlight.

Protect from heat, moisture and light, and keep containers closed when not in use.

Confirm appearance, purity, melting range, acid value, moisture and grade as required.

Use suitable eye and skin protection during handling, and wash skin contact with soap and water.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Brassylic Acid CAS 505-52-2?

A: Brassylic acid is tridecanedioic acid, a linear C13 dicarboxylic acid with the molecular formula C13H24O4 and molecular weight about 244.33 g/mol. It is supplied as a white crystalline solid or powder and is also known as 1,11-undecanedicarboxylic acid or tridecane-1,13-dioic acid.
Q:
Why is Brassylic Acid used to make macrocyclic musks such as ethylene brassylate?

A: Its linear C13 dicarboxylic acid structure is a natural building block for cyclization into ethylene brassylate and related macrocyclic musk molecules. The chain length and terminal carboxyl groups help form the large ring that gives the target musk its characteristic odor and stability.
Q:
How does the C13 chain affect polyamide, plasticizer, and lubricant performance?

A: The long odd-numbered aliphatic chain improves flexibility, low-temperature behavior, and water resistance compared with shorter or more rigid diacid monomers. This makes brassylic acid useful for specialty polyamides such as nylon 613 or nylon 1313, low-temperature plasticizers, and diester lubricants.
Q:
What personal-care and fine-chemical applications use Brassylic Acid?

A: Beyond musk and polymer chemistry, brassylic acid derivatives are used as emollients and conditioning ingredients in creams, lotions, shampoos, and body washes. The diacid can also be converted into surfactants, corrosion inhibitors, hot-melt adhesive components, and specialty ester intermediates.
Q:
What physical form, melting range, and storage conditions are typical?

A: The commercial product is a white crystalline solid with a melting range commonly around 112-114 degrees C. It should be kept in tightly closed containers in a cool, dry, ventilated area away from strong oxidizers, excessive heat, moisture, and direct sunlight.

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