常见问题(FAQs)

2-Amino-5-fluoro-4-methylbenzoic Acid: Properties & Uses

2-Amino-5-fluoro-4-methylbenzoic acid is a fluorine-substituted aromatic building block bearing both an amino group and a carboxylic acid functionality, making it a versatile intermediate for pharmaceutical and fine-chemical synthesis.

CAS Number
To be confirmed — see review flag
Molecular Formula
C8H8FNO2
Molecular Weight
169.15 g/mol
Functional Groups
Primary amine (–NH2), carboxylic acid (–COOH), fluorine substituent, methyl substituent
SKU
A727622
Supplier
Aladdin Scientific

Chemical Structure and Key Properties

2-Amino-5-fluoro-4-methylbenzoic acid is a substituted benzoic acid derivative with the following substituents on the benzene ring: an amino group (–NH2) at the 2-position (ortho to the carboxylic acid), a fluorine atom at the 5-position, and a methyl group at the 4-position. Its molecular formula is C8H8FNO2 with a molecular weight of approximately 169.15 g/mol.

The combination of electron-donating (–NH2, –CH3) and electron-withdrawing (–F, –COOH) substituents creates a compound with a well-defined electronic profile suited for directed synthetic transformations. The fluorine atom, owing to its strong electronegativity and small steric size, modulates the reactivity and lipophilicity of the molecule—properties that are highly valued in medicinal chemistry programs.

Note: The exact melting point, purity specification, and CAS number should be confirmed against the current Aladdin Scientific certificate of analysis for SKU A727622.

Applications in Pharmaceutical and Fine-Chemical Synthesis

Fluorinated aminobenzoic acid derivatives are widely employed as building blocks in drug discovery and development. The free amino and carboxylic acid groups in 2-Amino-5-fluoro-4-methylbenzoic acid enable straightforward coupling reactions, cyclizations, and functional-group interconversions:

  • Amide bond formation: The carboxylic acid can be activated (e.g., via acyl chloride, mixed anhydride, or coupling reagents such as HATU/EDC) to form amides with amines, yielding peptidomimetic or heterocyclic scaffolds.
  • Heterocycle synthesis: The ortho-amino/carboxylic acid arrangement is a classic precursor for benzoxazole, benzimidazole, and quinazoline ring systems, which appear frequently in bioactive molecules.
  • Fluorine as a metabolic blocker: The C–F bond introduced into drug candidates can block cytochrome P450-mediated oxidation at that position, improving metabolic stability.
  • SNAr reactions: Activated aryl fluorides participate in nucleophilic aromatic substitution, although the fluorine in this compound is not at a highly activated position; reactivity should be assessed experimentally.

These attributes make SKU A727622 a useful reagent for medicinal chemists designing kinase inhibitors, antibiotics, or other small-molecule therapeutics.

Handling, Storage, and Safety Considerations

As with most aromatic amines and fluorinated organic compounds, appropriate laboratory safety precautions should be observed when handling 2-Amino-5-fluoro-4-methylbenzoic acid:

  • Personal Protective Equipment (PPE): Wear nitrile gloves, a laboratory coat, and safety glasses. Use a fume hood when weighing or dissolving the compound.
  • Storage: Store in a tightly sealed container in a cool, dry place, away from light and incompatible materials (strong oxidizers, strong bases). Typical storage temperature is room temperature unless otherwise specified on the product label.
  • Solubility: The compound is expected to show solubility in polar organic solvents such as DMSO, DMF, methanol, and ethanol. Aqueous solubility may be limited at neutral pH but can improve under basic conditions due to deprotonation of the carboxylic acid.
  • Disposal: Dispose of waste in accordance with local regulations for organic chemical waste.

Always consult the Safety Data Sheet (SDS) for SKU A727622 on the Aladdin Scientific website before use. Specific hazard classifications, GHS pictograms, and first-aid measures are detailed therein.

Ordering and Specifications

2-Amino-5-fluoro-4-methylbenzoic acid is available from Aladdin Scientific under SKU A727622. To place an order or request a quotation:

  • Visit the Aladdin Scientific website and search for SKU A727622.
  • Select the required pack size and purity grade from the available options.
  • For bulk quantities or custom purity requirements, contact the Aladdin Scientific sales team directly.

A certificate of analysis (CoA) confirming purity, appearance, and analytical data (e.g., NMR, HPLC) is available upon request or can be downloaded from the product page. Shipping conditions comply with applicable regulations for research-grade organic chemicals.

Note: Specific pack sizes, pricing, and current stock availability are subject to change; please check the product listing for up-to-date information.

Frequently asked questions

What is 2-Amino-5-fluoro-4-methylbenzoic acid used for?

2-Amino-5-fluoro-4-methylbenzoic acid serves primarily as a synthetic building block in pharmaceutical and fine-chemical research. Its bifunctional nature (amino and carboxylic acid groups) enables amide coupling, heterocycle formation (e.g., benzoxazoles, quinazolines), and other key transformations. The fluorine substituent also contributes to improved metabolic stability in drug candidates.

How should I store 2-Amino-5-fluoro-4-methylbenzoic acid (SKU A727622)?

Store the compound in a tightly sealed container in a cool, dry place away from direct light and strong oxidizing agents or bases. Unless otherwise stated on the product label or SDS, room-temperature storage is generally suitable. Always consult the SDS for SKU A727622 on the Aladdin Scientific website for authoritative storage conditions.

What solvents can dissolve 2-Amino-5-fluoro-4-methylbenzoic acid?

Based on the compound's polarity and functional groups, it is expected to dissolve in common polar organic solvents such as DMSO, DMF, methanol, and ethanol. Aqueous solubility is likely limited at neutral pH but should improve under basic conditions where the carboxylic acid is deprotonated. Experimentally verifying solubility in your specific application solvent system is recommended.

What is the molecular formula and molecular weight of 2-Amino-5-fluoro-4-methylbenzoic acid?

The molecular formula of 2-Amino-5-fluoro-4-methylbenzoic acid is C8H8FNO2, giving a molecular weight of approximately 169.15 g/mol. Please confirm these values against the certificate of analysis provided with SKU A727622.

How can I order 2-Amino-5-fluoro-4-methylbenzoic acid from Aladdin Scientific?

You can order SKU A727622 directly through the Aladdin Scientific website by searching for the product name or SKU number, selecting your desired pack size, and proceeding to checkout. For bulk orders, custom specifications, or pricing inquiries, please contact the Aladdin Scientific sales team.

References

  1. Aladdin Scientific product listing for 2-Amino-5-fluoro-4-methylbenzoic acid, SKU A727622. Aladdin Scientific.
  2. Hagmann, W. K. The Many Roles for Fluorine in Medicinal Chemistry. Journal of Medicinal Chemistry, 2008, 51(15), 4359–4369. doi:10.1021/jm800219f
  3. Clayden, J.; Greeves, N.; Warren, S. Organic Chemistry, 2nd ed.; Oxford University Press: Oxford, 2012.

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.

目录: 常见问题(FAQs)

Da — 若无特别说明,分子量单位默认为道尔顿。   Mw — 重均分子量。   Mn — 数均分子量。

产品仅供科研与开发使用,不用于人体、动物、诊断或治疗。

引用本文

阿拉丁科学.《2-Amino-5-fluoro-4-methylbenzoic Acid: Properties & Uses》. 阿拉丁知识库,更新于 2026年10月13日。 https://www.aladdin-e.com/zh_cn/faqs/2-amino-5-fluoro-4-methylbenzoic-acid-properties-uses-en.html
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