Anthranilic acid
Anthranilic acid (CAS: 118-92-3, Formula: 2-(H2N)C6H4CO2H, MW: 137.14) is an aromatic amino acid with a molecular structure featuring both amine and carboxylic acid functional groups. This Puriss p.a. grade compound is valued for its applications in chemical synthesis and as an analytical reagent, particularly for the non-selective fluorescent labeling of glycans and oligonucleotides.
- IUPAC
- 2-AA,2-Aminobenzoic acid
- Synonyms
- 2-Aminobenzoic acidOrthranilic acid

Fluorescent Labeling
Anthranilic acid is employed for the efficient and non-selective fluorescent labeling of glycans and oligonucleotides. Its inherent fluorescence allows for sensitive detection in various analytical techniques.
Chemical Synthesis
As a versatile organic compound, anthranilic acid serves as a building block in the synthesis of various organic molecules. Its dual functionality makes it useful in diverse synthetic pathways.
Analytical Reagent
This compound is utilized as an analytical reagent in several scientific disciplines, including glycobiology, proteomics, and molecular biology. It is particularly suitable for matrices in mass spectroscopy analysis of glycans.
| Molecular weight | 137.14 |
|---|---|
| Linear formula | 2-(H2N)C6H4CO2H |
| Assay | ≥98.0% (T) |
| Grade | puriss. p.a. |
| Vapour density | 4.7 (vs air) |
| Application | Used for non-selective, efficient fluorescent labeling of glycans. |
| Melting point | 144-147 °C144-148 °C(lit.) |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
| Cation traces | Ba: ≤5 mg/kgCa: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤20 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNa: ≤50 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg |
| Anion traces | chloride (Cl-): ≤500 mg/kgsulfate (SO42-): ≤100 mg/kg |
| Ignition residue | ≤0.03% (as SO4) |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | absorption/337 nm ≥2000 (mol. absorption) |
|---|---|
| Fluorescence | λex 315 nm; λem 400 nm(lit.) |
| Analyte Suitability | glycansoligonucleotides |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Anthranilic acid used for?
+
Anthranilic acid is used for non-selective, efficient fluorescent labeling of glycans and oligonucleotides, as well as in chemical synthesis and as an analytical reagent in fields like glycobiology and proteomics.
What are the CAS number and formula for Anthranilic acid?
+
The CAS number for Anthranilic acid is 118-92-3, and its linear formula is 2-(H2N)C6H4CO2H.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Anthranilic acid in Puriss p.a. grade with an assay of ≥98.0% (T). This product is not represented as USP, BP, or EP grade.
How should Anthranilic acid be handled safely?
+
Anthranilic acid is classified as a Warning. It causes serious eye irritation (H319). Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves. Ensure adequate ventilation. In case of contact with eyes, rinse cautiously with water for several minutes (P305 + P351 + P338).
How is Anthranilic acid packed, shipped, and exported?
+
Tech Serve Solutions, a specialist global supplier and exporter, provides Anthranilic acid in various pack sizes suitable for laboratory and industrial needs, adhering to international shipping regulations.
How can I request a sample or quote for Anthranilic acid?
+
To request a sample or a quote for Anthranilic acid, please contact our sales team through the website or by phone, providing your specific requirements.
▶ Related products

5-Sulfosalicylic acid dihydrate
HO3SC6H3-2-(OH)CO2H 2H2O
Acids & Bases
Calcium hydroxide
Ca(OH)2
Acids & Bases
Acetic acid-12C2
12CH312CO2H
Acids & Bases
Acetic acid-13C2
13CH313CO2H
Acids & Bases
Acetic acid-13C2,d4
Acids & Bases

Acetic acid-17O2
CH3C17O2H
Acids & Bases
Acetic acid-18O2
CH3C18O2H
Acids & Bases
Acetic acid-2,2,2-d3
2-d3
Acids & Bases▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis