4-Amino-3-hydroxybenzoic acid

CAS 2374-03-0H2NC6H3(OH)CO2HChemical Synthesis

4-Amino-3-hydroxybenzoic acid (CAS: 2374-03-0; Formula: H2NC6H3(OH)CO2H) is a valuable aromatic amino acid derivative with a molecular weight of 153.14 g/mol. It serves as a key intermediate in chemical synthesis and peptide chemistry. This compound is particularly useful in the fields of chemical biology and for the development of unnatural amino acid derivatives, offering researchers a versatile building block for complex molecular structures.

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4-Amino-3-hydroxybenzoic acid (H2NC6H3(OH)CO2H) — chemical structure, CAS 2374-03-0; Chemistry, fine chemical supplied by Tech Serve Solutions

Aromatic Amino AcidsChemical BiologyChemical SynthesisPeptide Chemistry

01 /Applications

Chemical Synthesis Intermediate

Utilised as a foundational building block in multi-step organic synthesis pathways. Its functional groups allow for diverse chemical modifications.

Peptide Chemistry

Incorporated into peptide sequences to introduce specific structural or functional properties. Essential for creating modified peptides.

Chemical Biology Research

Employed in studies exploring biological systems and molecular interactions. Facilitates the design of novel biomolecules.

Unnatural Amino Acid Derivatives

Serves as a precursor for synthesising non-proteinogenic amino acids. Enables the expansion of the amino acid repertoire for biochemical research.

02 /Properties

Molecular weight	153.14
Linear formula	H2NC6H3(OH)CO2H
Assay	97%
Melting point	211-215 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xn
Risk statements (R)	22-36/37/38
Safety statements (S)	26

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

2374-03-0

MDL number

MFCD00017094

PubChem substance

24860651

Beilstein registry

509859

05 /Quality & supply

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.

06 /Frequently asked questions

What is 4-Amino-3-hydroxybenzoic acid used for?

4-Amino-3-hydroxybenzoic acid is used as an intermediate in chemical synthesis, peptide chemistry, chemical biology research, and for creating unnatural amino acid derivatives.

What are the CAS number and formula for 4-Amino-3-hydroxybenzoic acid?

The CAS number is 2374-03-0 and the linear formula is H2NC6H3(OH)CO2H.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 4-Amino-3-hydroxybenzoic acid with an assay of 97%. This product is not represented as USP, BP, EP, or other pharmacopoeia grades.

What are the safety and handling precautions for 4-Amino-3-hydroxybenzoic acid?

This compound is classified as a Warning. Hazards include H302 (Harmful if swallowed), H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area and avoid breathing dust.