1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid
1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 74731-49-0; molecular formula C5H7N3O3; molecular weight 157.13 g/mol) is a heterocyclic 1,2,3-triazole building block. It carries a 2-hydroxyethyl group on the N-1 ring nitrogen and a carboxylic acid at the 4-position, giving a small, difunctional scaffold with both hydroxyl and carboxyl handles. Tech Serve Solutions supplies it as a research-grade building block for chemical synthesis, where its triazole core supports the assembly of more complex molecules.
- Synonyms
- 1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid1-(2-Hydroxyethyl)-1,2,3-triazole-4-carboxylic acidCAS 74731-49-0C5H7N3O3
Heterocyclic building block
Serves as a 1,2,3-triazole building block in organic and medicinal chemistry, providing a stable aromatic heterocycle around which larger structures can be constructed.
Difunctional synthetic intermediate
The pendant hydroxyl and carboxylic acid groups offer two independent reactive handles for esterification, amidation, etherification and further derivatisation, making the scaffold useful for selective functionalisation.
Conjugation and linker chemistry
The carboxyl group is well suited to amide coupling, allowing the triazole unit to be joined to amines, peptides or other fragments as a rigid spacer or linker.
Research and discovery chemistry
Used in laboratory-scale exploratory synthesis and structure-activity studies where a compact, polar triazole core is required. Tech Serve Solutions supplies it for research and development use.
| Molecular weight | 157.13 |
|---|---|
| Empirical formula | C5H7N3O3 |
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 1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid used for?
+
It is used mainly as a heterocyclic building block and synthetic intermediate. The 1,2,3-triazole ring, combined with a 2-hydroxyethyl group and a 4-carboxylic acid, provides two reactive handles for coupling, esterification and amidation, so chemists use it to assemble and functionalise more complex molecules in research and discovery settings.
What is the CAS number and molecular formula of 1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid?
+
Its CAS number is 74731-49-0. The molecular formula is C5H7N3O3 (Hill notation), and the molecular weight is 157.13 g/mol.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this compound as a research and laboratory grade building block. A specific assay value is not stated here; we do not represent it as USP, BP or EP pharmacopoeial grade. A current Certificate of Analysis with the actual assay can be provided with your enquiry, and specifications can be confirmed against your requirements before despatch.
How should 1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid be handled and stored?
+
Handle as a laboratory chemical using good chemical hygiene: wear suitable gloves, eye protection and a lab coat, work with adequate ventilation, and avoid generating dust, contact with skin and eyes, and ingestion. Store in a tightly closed container in a cool, dry, well-ventilated area away from incompatible materials. A formal hazard classification is not supplied here; please refer to our Safety Data Sheet, which is available on request, before use.
How is 1-(2-Hydroxyethyl)-1H-1,2,3-triazole-4-carboxylic acid packed, shipped and exported?
+
It is packed in appropriately sized, sealed containers with full labelling and documentation, from laboratory quantities upwards. Tech Serve Solutions exports worldwide and arranges packaging, labelling and shipping documents to suit your destination and the prevailing transport requirements. Pack sizes and lead times are confirmed at the quotation stage.
How do I request a sample or quote?
+
Contact Tech Serve Solutions with the product name or CAS number 74731-49-0, the quantity you need, and your delivery destination. We will respond with availability, pack options, lead time and supporting documentation such as the Certificate of Analysis and Safety Data Sheet.
▶ Related products
1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis
1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ 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