What is 2-methyl-3-buten-2-ol?
2-methyl-3-buten-2-ol (CAS Number 115-18-4) is a synthetic flavoring compound belonging to the class of aliphatic alcohols. It is a colorless to pale yellow liquid with a fruity, slightly floral odor. The compound is chemically described as a tertiary alcohol with a molecular weight of 86.13 g/mol. In the flavor industry, it is used in very small quantities to achieve desired sensory characteristics in food and beverage formulations.
Common Uses
As a flavoring agent, 2-methyl-3-buten-2-ol is incorporated into various food categories including:
- Alcoholic beverages (liqueurs, spirits, wines)
- Non-alcoholic beverages (soft drinks, juices, flavored waters)
- Baked goods and bread products
- Confectionery and candy
- Dairy products (yogurts, flavored milk)
- Savory products and seasonings
The compound is used at levels typically measured in parts per million (ppm), reflecting its potent flavor contribution. Like other synthetic flavoring agents, it undergoes dilution during food manufacturing to achieve acceptable sensory profiles.
Safety Assessment
According to FDA records, there have been zero adverse events reported for 2-methyl-3-buten-2-ol, and zero recalls associated with this ingredient. The lack of reported safety incidents suggests no widespread public health concerns have emerged from its use in food applications.
The compound undergoes metabolism in the body similar to other simple alcohols. Toxicological data indicates it has low acute toxicity when ingested in the quantities present in flavored foods. The typical exposure from food use is minimal, as flavoring agents are used at very low concentrations.
As with most synthetic flavoring agents used in foods, safety depends on the dose and frequency of exposure. The amounts used in food flavoring applications are substantially below levels associated with toxicological effects in animal studies.
Regulatory Status
2-methyl-3-buten-2-ol does not have FDA GRAS (Generally Recognized as Safe) status. However, this does not indicate the ingredient is unsafe. GRAS status represents a specific regulatory pathway, and many legitimately used flavoring agents operate under alternative regulatory frameworks.
Under FDA regulations, this compound may be used as a synthetic flavoring substance provided it complies with established limitations and purity specifications outlined in the Code of Federal Regulations (CFR). The FDA maintains authority to monitor its use and safety profile through post-market surveillance.
In the European Union, flavoring substances including 2-methyl-3-buten-2-ol are evaluated by the European Food Safety Authority (EFSA) and must comply with Regulation (EC) No 1334/2008 on flavorings and certain food ingredients with flavoring properties.
Key Studies
Limited published peer-reviewed literature exists specifically on 2-methyl-3-buten-2-ol compared to more extensively studied food additives. Most safety information derives from industry toxicology reports submitted to regulatory agencies and general knowledge of aliphatic alcohol metabolism.
The safety profile of structurally similar flavor compounds, combined with the absence of adverse event reports and recall history, provides indirect evidence of acceptable safety margins when used as intended in food applications.
Flavor industry organizations and regulatory agencies periodically conduct comprehensive reviews of synthetic flavoring agents. Current regulatory approval reflects determinations that 2-methyl-3-buten-2-ol meets safety standards for food use at typical concentration levels.