What is Musk Ambrette CAS 83-66-9?

Musk ambrette is a synthetic nitro musk with the chemical name 2,6-dinitro-3-methoxy-4-tert-butyltoluene and molecular formula C12H16N2O5. It is supplied as pale yellow to greenish-yellow crystals with a strong floral musk odor and is used mainly as a fragrance fixative.

Why is this product labeled Industrial Grade instead of cosmetic grade?

Musk ambrette has known phototoxicity and sensitization concerns, and current fragrance-industry guidance does not permit it in consumer fragrance products. This product is therefore supplied for non-skin-contact industrial applications and should not be used in cosmetics or personal-care fragrances.

How does musk ambrette function as a fixative?

It reduces the evaporation rate of more volatile top and middle notes, helping an aroma system retain its intended character for longer. It is normally used at low concentration within a complex fragrance formulation rather than as a bulk solvent or primary carrier.

What solubility and storage conditions should be considered?

Musk ambrette is soluble in 95% ethanol and diethyl phthalate but insoluble in water. Store it tightly sealed in a cool, dry, ventilated area away from light, heat, and strong oxidizing agents, and use appropriate dust protection when handling the crystals.

Musk Ambrette CAS 83-66-9

Musk Ambrette, also called 2,6-dinitro-3-methoxy-4-tert-butyltoluene or synthetic ambrette musk, CAS 83-66-9, is an industrial-grade synthetic nitro musk supplied as a fragrance fixative. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 83-66-9
Synonyms: 2,6-Dinitro-3-methoxy-4-tert-butyltoluene, Synthetic ambrette musk, Musk ambrette crystals, 1-tert-butyl-2-methoxy-4-methyl-3,5-dinitrobenzene, Artificial musk ambrette
Einecs: 201-493-7
Molecular Formula: C₁₂H₁₆N₂O₅
Grade: Industrial Grade
Package: 10kg/drum, 25kg/drum, or customized

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Product Description

Musk Ambrette CAS 83-66-9 is a synthetic nitro musk, also known as 2,6-dinitro-3-methoxy-4-tert-butyltoluene, with the formula C₁₂H₁₆N₂O₅ and EINECS 201-493-7.

Synonyms: 2,6-Dinitro-3-methoxy-4-tert-butyltoluene; Synthetic ambrette musk; Musk ambrette crystals; 1-tert-butyl-2-methoxy-4-methyl-3,5-dinitrobenzene; Artificial musk ambrette.

CAS: 83-66-9.

Molecular formula: C₁₂H₁₆N₂O₅.

It appears as pale yellow to greenish-yellow crystals with a strong floral musk odor.

It is soluble in 95% ethanol and diethyl phthalate but insoluble in water.

It is used mainly as a fragrance fixative, reducing the evaporation rate of more volatile top and middle notes.

It is supplied for non-skin-contact industrial applications such as bulk cleaning agents and technical surfactants.

It may also serve as an intermediate or raw material in specialized fine chemical formulations.

The melting point is about 84.0-86.0 °C.

The typical assay (GC) is about 99.0% or higher.

It should be kept away from light, heat and strong oxidizing agents.

Store in a cool, dry, well-ventilated area in tightly sealed containers.

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

Confirm appearance, odor, assay, melting point, solubility 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 Musk Ambrette CAS 83-66-9?

A: Musk ambrette is a synthetic nitro musk with the chemical name 2,6-dinitro-3-methoxy-4-tert-butyltoluene and molecular formula C12H16N2O5. It is supplied as pale yellow to greenish-yellow crystals with a strong floral musk odor and is used mainly as a fragrance fixative.
Q:
Why is this product labeled Industrial Grade instead of cosmetic grade?

A: Musk ambrette has known phototoxicity and sensitization concerns, and current fragrance-industry guidance does not permit it in consumer fragrance products. This product is therefore supplied for non-skin-contact industrial applications and should not be used in cosmetics or personal-care fragrances.
Q:
How does musk ambrette function as a fixative?

A: It reduces the evaporation rate of more volatile top and middle notes, helping an aroma system retain its intended character for longer. It is normally used at low concentration within a complex fragrance formulation rather than as a bulk solvent or primary carrier.
Q:
What solubility and storage conditions should be considered?

A: Musk ambrette is soluble in 95% ethanol and diethyl phthalate but insoluble in water. Store it tightly sealed in a cool, dry, ventilated area away from light, heat, and strong oxidizing agents, and use appropriate dust protection when handling the crystals.

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